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The Ordinary Alpha Lipoic Acid 5%

The Ordinary Authentic
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The Ordinary Alpha Lipoic Acid 5% by The Ordinary


The Alpha Lipoic Acid 5% from The Ordinary is an extremely high potency antioxidant treatment which can help to improve skin texture and tone.

Containing high concentrations of Alpha Lipoic Acid, this treatment is the best way to achieve a more youthful-looking and radiant complexion.


Alpha Lipoic Acid is an antioxidant enzyme which can help to combat free radicals and help prevent the appearance of premature ageing. Unstable in water formulations, this water-free treatment has an oily texture which will soon sink into the skin for a comfortable and hydrated finish.


The Alpha Lipoic Acid 5% should only be used at night time to avoid sun exposure and used once or twice a week to prevent skin sensitivity. It’s suitable for all skin types except for those who have particularly irritated or sensitive skin.


- High concentration of antioxidant Alpha Lipoic Acid
- Suitable for all skin types except sensitive or irritated skin
- To be used at night time only
- 30ml


All of our products are filled/measured by weight/volume so the product is correctly filled to 30 ml. The packaging does not accurately reflect the size of the fill. However, this is intentional as some air must be allowed at the top for the product to actually close.

To learn more about how to navigate this brand, click here to read our skincare guide on The Ordinary.

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Reviews (67)
Review and earn
Does What It Says - 15-12-2018 by

It's a good product. It has a sort of cool burning sensation that's a little stingy but not in a painful way. My skin is really smooth and dewy the next day and it doesn't irritate my dry skin! I have noticed it has improved my hyperpigmentation after a while (once a week use).

Highly effective but goes 'bad' easily - 12-12-2018 by

This is such a great night-serum! I use it weekly and it is so powerful that I don't need to use it more regularly - in fact, I have found that it irritates my skin when I do. For me, the only downside is that it seems to go 'bad' very quickly if there is any contamination of the formula in the bottle. My first two bottles had this problem. They went milky and viscous and I had to dispose of them, but on my third bottle I have been super careful to not touch the dropper to any part of my skin before putting it back in the bottle and I haven't had this problem again!

Powerful - 10-12-2018 by

This serum is a pretty powerful little solution. The oily consistency for a serum is different and it makes my skin warm and tingly. It has a bit of a singed hair smell to it. I only use this at night and in the morning my dry skin is always bright and plump

Slight brightening effect - 10-12-2018 by

This product is like a dry oil when applying. It dries down after a few minutes. It is very strong and I can feel some heat and tingling in the first few minutes after applying. I can tolerate that and do not have any serious irritation so far. A lot of people claim that their skin brighten up just after one night of use. I don't see that magical effect but I do think my skin lighten up a bit.

Unpleasant - 10-12-2018 by

I love heaps from this brand but this was a fail for me. I don’t enjoy the hot feeling when I apply it, nor am I a fan of the smell. It seems very strong but never seems to have much of a payoff in terms of skin health and appearance.

Great when used as directed - 06-12-2018 by

I have been using this product for 3-4 months now twice a week on average. I have acne prone skin that is on the oily side. My problems are texture and large open pores which can lead to congestion, breakouts and blackheads.

I use this product after cleansing and toning. It has an oily consistency so I like to use before any other serums and give it 20-30 mins to absorb into the skin. It does have a distinct smell, which almost reminds me of a fish oil or something (no joke I actually googled to find out if it was derived from fish haha) but my boyfriend doesn’t think it smells like that. It’s not super unpleasant to me though and disappears after it sinks into the skin. As mentioned by other reviewers, it has quite an intense heat-like sensation when initially applied. Some people would describe it as burning but it’s not unbearably uncomfortable for me - if you have sensitive skin it could be an issue. If you still want to try it, I’ve read that you can mix it with another oil to dilute the strength. The hot feeling slowly fades until it is finally gone about 10 mins after application. Once it’s sunk into my skin, I follow with other serums and a night cream or face oil.

I notice the benefits of this product when I’m having a breakout or feel that my skin is looking dull. If I’m having a breakout (whiteheads), I’ll apply at night using the above method, and in the morning my skin will look noticeably better. The breakout will have calmed and the majority of pimples will be gone. My skin feels ultra soft and brightened. Because of the oily consistency, it feels like it doesn’t dry my skin out and is hydrating. For me, this works in my skin’s favour, as drying my skin out too much during a breakout can cause more harm than good (overstimulating oil production and causing more breakouts). It also has anti aging properties but I’m only 25 so can’t see an immediate difference as I have little to no finelines or wrinkles. It has become a regular part of my skincare routine and I intend to repurchase.

I’d definitely recommend this to others but it won’t be for everyone, particularly if you’re sensitive to smells, don’t like “burning sensations” on your skin or have sensitive skin. For $12.90 and the potential benefits, I’d say take a risk and give it a go, but excercise caution and use the dilution method if you’re concerned about any of the above issues.

Strong but good - 29-11-2018 by

I use this in the evenings, after I've cleansed before moisturising. I find that it helps cell renewal and de-oxidising blackheads. I have combination skin and it helps regulate it.

Protective - 12-11-2018 by

A good night serum that protects your skin from environmental damage

Great - 30-10-2018 by

This is really great product. I use it twice a week and I always wake up with bright and baby smooth skin. It smells a bit weird and feels a little warm when you put it on your face but I have experienced no irritation or negative effects.

Just average - 18-10-2018 by

I was very excited to try out this product based on the reviews and my experience with other TO products but I didn't really find it did all that much. My skin was a little brighter in the days following use but due to the oily consistency I found it caused more issues than it solved.

Super brightening - 18-10-2018 by

I've been using this product 2 times a week, but wish I could use it more! Always wake up with plump, bright looking skin. I have not had any irritation from using this product, it does have a weird 'burning' smell but it doesn't bother me. I always layer a serum over the top because the consistency can be a little oily slicky. Nonetheless, fantastic product for the price, will definitely repurchase.

Awful smell - 16-10-2018 by

I’ve used Ordinary products religiously since they were released and love nearly all. But god, this one. The smell. The smell.

It’s like wet dog crossed with yeast and poo and sweat in the band of your sports bra. I’m not kidding. It doesn’t go away no matter what other products you later on it. It might just be my skin chemistry or I got a bad batch but, yeh, not a fan. I’ve not been able to stick it out long enough to see if it works.

Not gonna use it - 10-10-2018 by

I did love this product. I’ve been using it for about 3 3 months and it left my skin glowing and beautiful. Now when I use it a few days after my skin get rad dry and chapped like.. I’m not going out in the sun after, I’ve given my sling a break from it for a few weeks and it just seems to get worst. I don’t know why suddenly I’m reacting. :-(

amazing - 10-10-2018 by

No stranger to AHA’s and the like this is my new must have product. It is a weird slick / oily texture but absorbs in fine eventually. I use a few drops, concentrating on my forehead and follow with rosehip or jojoba oil. The next morning my skin looks glowy and plump and like I’ve just had a professional treatment. I use 2-3 times weekly and have to stop myself from using everyday! Love!

Used to stung alot! - 07-10-2018 by

Stung alot on my first few use, but woke up with the brightest skin I have ever had. Don't use it daily as it is a very strong product!

Too strong for my skin - 03-10-2018 by

I think my skin is too sensitive for this serum. It feels almost stinging on my skin and I didn't see any noticeable changes. I have discontinued using this and wouldn't use it again.

Good product - 27-09-2018 by

I love the ordinary products including this one.I use this twice a week it’s quick and easy to use and I get good results with this skin more brighter, It doesn’t make my skin too sensitive.

brightening - 24-09-2018 by

I can really see my skin looks brighter. probably not for sensitive skin

Amazing Product - 20-09-2018 by

I have very dull, dry skin and this product was amazing! I put a few drops on before bed and wake up with radiant healthy looking skin. Would highly recommend.

AMAZEBALLS - 20-09-2018 by

I love this product. After using it once a week (I use Retinol and Lactic Acid the other nights) I wake up with the most glowy, plump skin. Has a bit of a weird smell and consistency but it's worth it!

Hard worker - 18-09-2018 by

Love what this does to my skin! It feels so soft and smooth days after, and I love anything that works that you don't need to use daily or more! I can see this being an issue for sensitive skin but it does say you can dilute with oils so well with a try. I'll definitely be sticking with this one long term. It's a great fixer upper for sure.

Definitely not for sensitive skin - 17-09-2018 by

After reading the reviews, I was expecting big things from this acid but have yet to notice any results. It stings on the drier, more sensitive regions on my face and has a tacky, oily consistency to it. I will continue to use it twice a week though and go from there.

Very Effective - 17-09-2018 by

I purchased this out of curiosity because I hadn't heard of this particular acid but love the other Ordinary acids in my skincare routine. I didn't expect it to be quite so effective! This acid feels kind of oily as it goes on but I found that mostly went away fairly quickly. It has an unfortunate 'rubbery' smell, but it isn't overpowering at all. I experienced a feeling of 'heat' on my skin as soon as it was applied but this went away promptly - this was interesting because I haven't felt any tingling or burning whatsoever with the Ordinary retinol or lactic acid. It's REALLY effective. In the morning my skin feels 'resurfaced', fresh and smooth. I'll be careful not to overuse this acid, but will certainly continue to have it in my routine for 2-3 nights per week. Love it - very effective!

Undecided - 03-09-2018 by

I’m undecided on the The Ordinary Alpha Lipoic Acid 5% I’ve tried and loved a few serums and oils from the ordinary however this one after introducing and keeping in my skincare routine for almost two months showed barely any results. I loved the light warming sensation, however found little difference even after keeping it as part of my routine for two months. I sadly gave the second bottle I purchased to a friend hoping she’d have better luck.

Miracle Worker - 03-09-2018 by

I don’t know exactly how or why this stuff works but my skin is crazy soft and smooth after using this. I honestly didn’t know my skin could be this nice. I’m in my mid 30’s with fair, sensitive skin that is prone to dehydration and hormonal breakouts I was worried it might cause irritation because its described as being very strong but I had no trouble with it at all. The info says to only use 2-3 times per week so I have been cautious but the results for me have lasted days. Smooth, shiny, clear lovely skin. Highly recommend.

not for sensitive skin - 22-08-2018 by

My skin looks brighter and more even, has similar results to a vitamin C serum 4 times the price. it does sting a little so probably not for sensitive skin

Sunday night skin treat - 21-08-2018 by

This is my Sunday night skin treatment to ensure I start Monday with glowing skin. I use it in place of my retionid or any acids as this should not be mixed with any other actives. It's one of the tools I use to keep my skin bright and it's working for me. I have dry skin so find the slightly oily formula perfect for me skin. I use a moisturiser over the top as well. Some people mention a smell... I can't notice it at all.

Love the texture and result - 14-08-2018 by

I love the light, oil substance that this solution is. It is so easy to work into palms and pat evenly on the face which I find hard with more gel like substances. And as this is such a strong exfoliant I want to make sure it isn’t too concentrated on certain areas of my face and that it is even, so the spreadibility is a big positive for me. I find using this when my skin is looking dull brightens it up immediately. If you have very sensitive skin, I would probably pick something more mild for exfoliation as this can sting quite a bit.

Best for hyperpigmentation - 14-08-2018 by

Whenever I get a blemish - even if I'm on my very best behaviour and don't squeeze - I still get a big red mark! I absolutely love this product for that purpose. I'm no scientist, so I don't why its particularly helpful for this purpose, but IT IS. Wayne Goss raved about this one on his YouTube channel, and I'm so glad he did because it is one of my HG skin products.

Amazing - 14-08-2018 by

I'm in my mid-20s and my skin can get quite dry and dull, and I have quite dark circles in my under eye area which is my main concern when looking for skincare products.
I use The Ordinary's Alpha Lipoic acid 5% once or twice a week before bed and every time I wake up my face looks so much healthier! My skin is definitely plumper, the dark circles are minimised, any fine lines are gone and there is a definite glow.
Yes it does have a funny smell, kind of like burning rubber, which isn't great but it's not that strong and I only use this when I'm having a quiet night in. Not to mention the pay off of having amazing skin the next day is totally worth the mild discomfort.
I've already recommended this product to my friends and will definitely be repurchasing when it runs out, which won't be for a while as I bought it a few months ago and I still have almost a full bottle left!

Absolute love! - 13-08-2018 by

This by far has been my favorite new product from The Ordinary.
My skin type is more normal combo skin with some areas being dry and patchy, and Oily T-Zone. Occasional break outs have left my some scarring and pigmentation on my skin which is why I decided to try this product.

Use it as recommended 2-3x per week worked like a charm, added this on top of my night time routine after cleansing then seal with my fave rosehip oil also from The Ordinary. Woke up with brighter skin, hydrated skin.
I also use a mild vitamin C scrub from the bodyshop on nights I dont apply this

Over time around the 3rd week, saw visible improvement on my pimple scars that has by now on my 6 week faded away.

It does tingle and sting abit, leaving your face feeling hot for about 5-10mins then it usually subsides.

I would defineoy recommend but probably not for the sensitive skin type

Great product! - 08-08-2018 by

Has help my skin overnight. Complexion so much brighter. Love this!

YASSSS - 06-08-2018 by

I feel like this less talked about product is the dark horse. I'm willing to forgive that it smells like rubber gloves as it's working absolute wonders for my skin!

It tingles for a little bit, but I don't mind because it makes me feels like it's working. My skin tone and texture have both improved dramatically. The antioxidants leave my skin feeling plump, hydrated and refreshed in the morning,

I'd had a lot of compliments recently on my skin and I'm putting it down to introducing this baby into my skincare regime. Give it a whirl!

Great stuff! - 03-08-2018 by

This is amazing. I can see results after just one night - my mature skin is brighter, tighter and has a glow. It is powerful though and I think twice a week is enough. Really good for any age but I think particularly good for mature age skin.

Wake up and see the difference! - 26-07-2018 by

This stuff is liquid gold! I got it to brighten up my skin (and because I'm hooked on TO) and I was not disappointed. It's very tempting to use every night but using it 2-3 times weekly works a charm. I use it after cleansing and seal in with facial oil and when I wake up, I want to cry because my skin is so plump and literally glowy! The results are instant. I've struggled with adult acne and dullness, but after adding a couple of products from TO my skin has made a complete turn around. This Acid just puts the cherry on top. Some reviews mention texture but I just pat it in and then after a few minutes add oil on top and it feels lush, 2 or 3 drops is all you need!

So far so good? - 16-07-2018 by

I am struggling with my acne scarring after years of cystic acne, and I was hoping this would help with that as well as start working on fine lines as I approach 30.

I use it twice a week and I think my skin is definitely brighter and smoother, and my acne scarring is improving. I also use a lot of other exfoliators and serums though, so it's hard to tell sometimes?

I did notice this breaking me out a bit but I suspect thats just from over-exfoliation, so I'm going to pull back on using it 2-3 times a week and just use 1-2 times.

Overall though, I do look good after I use it, and I like the tingly feeling I get on application.

A nice morning glow - 16-07-2018 by

Sometimes my dry skin can be a little dull and flat looking in the morning, particularly as I use Tretinoin most nights. After I read the reviews of this serum, in addition to a few peer-reviewed journal articles that claimed that Alpha Lipoic acid at a 5% concentration could help alleviate smoker's skin ageing in addition to photo-ageing.
So I purchased a bottle of this serum, not particularly expecting anything to happen and tried it. The first time I tried it there was no stinging etc as pervious reviewers had commented upon. But I do say that my skin looked younger and more glowy in the morning.
As a word of caution- do shake the bottle before you use it. From my experience, it appears that the ALA can seperate from the carrier in the bottle, so each application may be at different percentages.

Overnight Magic! - 09-07-2018 by

Stop what you're doing right now and buy this dream in a bottle! For a product so potent, that I feel like I've woken up with freshly polished skin, I cannot believe the price. After years and years and thousands and thousands spent on expensive products that do half the work of this one - I'm hooked!

Feel refreshed - 09-07-2018 by

My skin has acne, acne scars, dryness, eczema, spots, peeling around the eyes, pigmentation and freckle like pigmentations or freckles.

My main concern is to get rid of the acne, acne like spots or scars etc.

I used the product with Niacinamide in the morning, Retinoic acid 2.0% and Alpha Lipoic Acid 5.0% alternating at night. You are not meant to use the Alpha Lipoic Acid daily as it is said to be too strong. Hence I use the Retinoic on days that I don't use the Alpha Lipoic. I preferred the Alpha Lipoic Acid over the Retinoic Acid as my skin felt more refreshed the next day. One can say the Alpha Lipoic Acid is a stronger exfoliant than the Retinoic Acid because of the concentrations.

The product spreads on well, it is less viscous than the Retinoic Acid, so it can flow down your face if you don't tilt your face when dropping the drop onto your face. It stung the first time I used it in my life, but not too painful. I tried it on a male friend, it burned like mad for him because he doesn't use acids on his face at all.

Made My Pores Appear Smaller - 08-07-2018 by

This is the only product I have tried that truly made a visible improvement to my pores. I use this once a week and the improvement to my skin's texture is phenomenal. My pores appear smaller and my scars fade faster than they used to. This product is undoubtedly worth the money and I will continually repurchase.

Takes a long time to absorb on me, but great results - 02-07-2018 by

I use this once a week, acid toning with lactic acid once through the week, too (pore issues). I've found this works really well on my freckles, and gives me an extra exfoliation that's been helping with my battle against enlarged, clogged pores. It takes a while to soak in, for me, I've found, but aside from that, I'm hooked!


I have combination, acne-prone and sensitive skin so it is very hard to find products that don't break me out and irritate my skin. I use this every third night and my skin has never looked better! I wake up with my face feeling so soft and smooth. I don't find that it stings that much and doesn't irritate my skin AT ALL! I started using it back in March and have never looked back. It's been about 3 months and i still have about a whole years worth. I only really use about max 3 drops and because i don't use it every night, you can really stretch out the whole bottle. They are awesome products that give you excellent results and the price just makes it even better! I will definitely keep repurchasing!

Wake up with smooth and glowing skin - 25-06-2018 by

I love using this when my skin is more blemished or congested! I only need a tiny amount of this for my entire face. Every time I use this at night I always wake up to smoother and brighter skin. My complexion has improved greatly since I started using this in my skincare routine.

I don't have sensitive skin but this has the occasional sting which goes away quickly after application. I definitely recommend this for anyone who's looking to achieve smoother and brighter looking skin! :)

Love it - 25-06-2018 by

The Ordinary products a few months back and I couldn’t be happier my skin has never looked better.
The alpha lipoid acid makes my face look so bright and clear. I use this about 3x a week
Make sure to use spf

The glow-maker! - 20-06-2018 by

I have dry skin with some pigmentation and a lot of dullness. I’ve been using the Lactic Acid 5% formulation and while it’s been nice and good at sloughing away some dry patches, it hasn’t really done wonders for my skin. Enter Alpha Lipoic Acid! I’ve used it twice in the last 7 days and it’s been a miracle - my skin feels velvety, plump and lit from within. The best part for me is its effect on pigmentation. I occasionally get pimples during my cycle and they leave scars that take a good month or two to go away. With the Alpha Lipoic Acid a recent pimple scar has already lightened to the point that I don’t need concealer on it, and I expect it to disappear completely with a third application!

The smell is a little off-putting, but goes away very quickly. Applies well - a little goes a very long way. It does tingle on application but only slightly more than the Lactic Acid formulation. I’ll be using both in my routine going forward. I love The Ordinary!

Gentle yet UBER effective - 14-06-2018 by

This weekly treatment is a must have addition to any skin fanatic's regime. Apply it at night, once a week and the next morning your skin will glow! Follow the instructions, as you don't want to use more than needed as this baby is nice and strong.

Note that it is a chemical exfoliant so if you use any other forms of exfoliants in your weekly routine you may want to omit them.

WOW!!! - 13-06-2018 by

This product is incredible!!!
It seems to promote skin circulation and the skins metabolic process. As a result your skin actually glows and is silky soft.

Amazing - 02-06-2018 by

I have been using this twice a week for the past 2 weeks. It gives instant over night results ! In the morning my skin us plumped glowing and so smooth and soft. I have had compliments on my skin since using this product. Highly recommended you give it a go you won't be dissapppinted it truly is outstanding and for the price it is amazing!

Great value for your money! - 21-05-2018 by

I am highly impressed with this! I use a few drops every other night and I feel a slight tingle but I like that. My skin looks so nice when I wake up after using this. If I have a big day I always use this the night before to look more fresh.

Great stuff - 14-05-2018 by

This is a wonder worked. My skin is so glowey after using this!

Great for my combo skin - 08-05-2018 by

Used twice a week at night on my combo skin (oily T zone with enlarged pores) this gives noticeable more even tone in the morning. Light sting upon application but it doesn't last. Definite repurchase for me.

Cult status well earned! - 07-05-2018 by

I love this stuff. Yes, it has a sulfuric/ rubbery smell and my bf calls me "rubber face" when i use it but, it's worth the stench. It isn't THAT bad and dissipated quickly. It does give that warming sensation, at times (depending on how much i have pushed my skin with other actives) it is more of a hot burn. It does say not tp use on.sensitive and compromised skin and i recomend you do listen to that! I used it once after the red peel and it did burn but faded after about 20 mins
I LOVE the glow i get from using this! Use it alone or with other producs. I find ot gives my skin a great boost and i often do not need to use it more than once a week. It lasts ages and i would easily pay 4x the price based on results. I love this when used with res/fer after 20 mins wait in between for a big boost.

Love this serum! - 18-04-2018 by

I'm low-key obsessed with this serum. I only use it once a week at night before moisturiser and I find that's all I need. My skin is glowing in the morning. The only downside is that it lightly stings for a minute or so after applying it. But this is tolerable. Will definitely repurchase.

This is potent - 05-04-2018 by

I use this twice a week. I have used it 3 x week and unfortunately it was too much and my skin started to peel. When I use this, I wake up with clearer skin and a glow. This is some serious skin care. Be careful not to overuse but seriously amazing for the skin

Peeling Fine - 03-04-2018 by

This is a fantastic product to up your peeling game. I’m 30 with fair olive skin prone to enlarged pores, dryness and some hormonal acne. I use this 1-2 times a week overnight applying over ALPHa H liquid gold (feel the burn!) and a light layer of SKII on top. I wake up glowing with more even tone and tighter skin. Afterwards I exfoliate and moisturise with my usual routine. Love it! A fab next step from the 5% lactic acid.

Good - 03-04-2018 by

I’ve started using The Ordinary products a few months back and I couldn’t be happier - my skin has never looked better.
The alpha lipoid acid is part of my evening routine. I cycle it with lactic acidand retinol and use it before resveratrol, matrixyl and moisturiser.
I feel like this combination of products works for me and will stick with it.

It's good, but not life changing - 22-03-2018 by

I was nervous and excited to try this, after reading reviews about it being so powerful and producing amazing results... But I have to say, I didn't notice much of a difference. Certainly not the glowing appearance some people described.

On the upside, it wasn't scary to use, the warm tingly feeling was not unpleasant, and my skin did feel smoother the next day. I feel like I could use this every night (and I have somewhat sensitive skin, i.e. Retinol makes me peel) but I'll use it every second night, alternating with a Retinoid. This product is definitely better than the lactic acid (10%) and I would recommend it - just don't expect it to change your life like I did!

A must have in my skincare regime!!! - 19-03-2018 by

When I initially found this product I was looking for a cheaper alternative to Alpha H Liquid Gold.
My skin has really begun changing as I near 30; needing a lot more hydration than ever before.
I have combination skin, redness, and very congested looking & uneven skin in the way of texture.
I used this product for the first time & thought it was much too oily, even though I applied it using a cotton pad. It’s not actually too oily, I was too generous! A little goes a long way! After a bit of research I found its best to apply like a facial serum; lightly pressing it in to the skin with your hands. 3 drops is perfect!
After only 1 use I woke up to the softest skin. It felt exactly like it feels the morning after using liquid gold. It’s not a replacement to liquid gold, but definitely a product I use to alternate so that liquid gold lasts longer.
Definitely add this product to your night time regime a few times a week! I personally don’t mix it with anything or apply anything else with it, and I find that works best! However if you have very sensitive or reactive skin, you can mix it with another facial oil. Just ensure you use it sparingly!
Overall, an absolute keeper! And for a very affordable price!!!

Really good stuff! - 19-03-2018 by

The warming, tingly feeling worried me on first try but no regrets. All was well. The result is impressive... and for the price... amazing! As tempting as it may be, I don't use this product daily. Just 2-3 times a week as prescribed on the bottle.
Well done Brandon T - this magic potion rocks!

Its a keeper - 13-03-2018 by

I love the Alpha Lipoic.. Its more effective than either the 5 or 10% Lactic, but not as drying or irritating as the 2% Salicylic (I still use but only on my nose where I have large pores and a small dab on any zits)

ALA is a powerful beast, so I'm intergrating 2/3 nights per week alternating with Retinol. It goes on hot, but its cools down within seconds. I usually layer over T.O's Rosehip Oil or thick moisturiser and wake up glowy and smoothe.

I have sensitive pale complexion prone to rosacea..blonde hair and blue eyes. My skin can handle this despite my sensitivity, I expect I will develop a good tolerance and be able to use more frequently as I need it. If you are sensitive like me, dont be put off by the initial heat- it does subside quickly and the results are worth it.

my new top skin care - 13-02-2018 by

now i know that i can’t live without thisssss product omg, thanks to the ordinary you did an amazing job.

Skin changes over night - 25-01-2018 by

This product terrifies me on first application. You only need a few stops but that was enough to cause my skin to have a bit of a “sting”. Of course, this is what it is meant to do (although I don’t have sensitive skin so take heed for those that day). There is dramatic impact the morning after using. My skin is more even, luminous and bright. I only use once a week because of the strength of he product, but am hoping to move it up to two.

Great brightening product - 04-12-2017 by

Love this product, my skin glows after applying it. I apply it at night under my night moisturiser and the morning after my skin looks and feels, more refreshed and youthful. I only apply it two to three times a week and my skin is loving it, no break outs, definitely a permanent addition to my skin regime.

For those Serious Skincare Junkies! - 27-11-2017 by

I am 42, with fair skin and freckles. If I get a pimple, I am left with a red mark that seems to fake forever to disappear.....well LOOK NO FURTHER!

This is a serious product. Do not mix this with other retinols or the Vitamin C!

I use this about 3 times a week. In rotation with the Retinol and Vitamin C. Never those three products together!

Tonight I used a dermalogica superexfoliant then I put this on my face...OH MY IT BURNED!! my face was almost sweating. But, it calmed down pretty quick and I put a light covering of cetaphil moisturiser on and now I am glowing.

I would continue to purchase this product. Any product that encourages skin turnover at night is what I am after. Take it easy if you have never used this type of serum before. :)

Quick results - 04-10-2017 by

I've used this twice in the past week. Upon application, there was a mild tingling around the base of my nose which is slightly sensitive, but it went away after a few minutes. I did not notice much difference the next morning like some people have, but after 2 applications I was surprised to notice a significant evenness of skin tone and a healthier glow, so much so that I could do without foundation and just apply powder. I would highly recommend it to others but would caution those with sensitive skin.

Effective stuff! - 02-10-2017 by

This takes some time to get used to. Yes it has a funny smell and might give a warm tingling sensation but I found it has a lovely brightening and plumping effect on the skin over time. Not a groundbreaking difference but a noticeable improvement. I use it twice a week :)

Another Potent Potion from The Ordinary !! - 23-08-2017 by

The first time you use The Ordinary’s ALA you'll be in no doubt why they advise to only use it no more than 3 times a week. It is POWERFUL and you can feel it.
Not the pricking-of-many-needles feel of their 23% Vitamin C, more like a deep-slow-burn (though far less uncomfortable than first-time use of the C23).
Having said that though, I only experienced this on the first use - after that my skin seemed to acclimatise to it very quickly and subsequent uses produced only a slight warming sensation. (If your skin is irritated though, in any way, I'd maybe postpone this until it settles).
The product is quite oily so use it after any watery serums. And, while it does absorb, it still leaves an oily film so it's perfect as a base under facial oils like the rosehips or marula oils, or under oily serums like the [ever-climbing expensive] Paula's Choice Resist Retinol or Super Antioxidant serums.
I've only been using it for 4 weeks so still too early to gauge its effects. But what I can say is I've switched over to using The Ordinary’s products almost exclusively for the last 3 months in an intensive bid to rescue skin looking worse for wear after 18 months of ongoing stress (aged parents/multiple hospital admissions, etc) and I have to say I'm really impressed. I can easily see myself using ONLY these products because of the outstanding results I'm seeing (& as I said, my skin was MAJORLY stressed and had just been through 18 months of VERY haphazard care). I'll try to update when I've used it for a bit longer.

But one other thing to note;
Beautypedia has reviewed this product and tried to put people off by saying it has a very strong sulphur smell. [As I'm beginning to suspect with a lot of their reviews] they've quite possibly never even seen the product - let alone smelled it. If they had, they'd know that it has absolutely no scent at all. (Nothing that I can detect anyway).
So don't take any notice of their fear mongering. It's just sour grapes.

Q & A
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