I've used the conditioner before and swear by it - leaves a great cool tone to my blonde and is almost like a deep treatment as well. Shampoo, as expected for a detox - a lot more cleansing than most of the shampoos I'd use on my blonde, lightened hair but after styling, my hair looked like I'd had a salon refresh.
Staying Alive leave-in is also super light and perfect for a pick-me-up on dry ends - I've used on wet hair only and it leaves a lovely fragrance too.
Does what it says and has not damaged my hair at all
I am a natural dark blonde and found my hair had gotten a little dull over the winter. Using this product as instructed and leaving it in for 30 minutes put some gold tones back into my hair which was exactly what I was looking for. If you don't have bleached or very light hair, the effect will be subtle and it does not have a significantly lightening effect on hair, but that I what I was looking for as I don't want to bleach my hair or dramatically alter it. The price is more than what I would usually pay but I've found I only need to use a little each time and still have heaps of product left, and I have a lot of hair! I anticipate it should last me at least 8 months.