I cannot stress how seriously amazing this is. I have the world's frizziest hair and I had tried everything on the face of the planet and nothing seemed to work. This is the first time I have seen massive, tangible results. My hair is glossy, soft and my waves form naturally as opposed to the frizzy mess that it was before. I pray they never discontinue this product.

I was really looking forward to getting this but so far haven’t been overly impressed. I use 1, 2 & 3 - 3 every time I wash my hair & it a life saver on my heavily highlighted fine but lots of hair. My hair is long and 6 is hard to work through the hair so maybe have been using too much. It has quite a dry feel to it in your hands so doesn’t go easily into my hair. Reading everyone else’s reviews I think I should persevere and maybe use less but had stopped using it as I was getting better results with other products.

This is probably the best hair product I have ever bought and I have a suitcase full of various products! I use Olaplex 1, 2 and 3 which have all worked well on my fine, dry, frizzy, coloured hair. Olaplex 6 works amazing on both damp and dry hair. I have already purchased more than once and wouldn’t be without it now. Can’t wait for number 7 to come out.

Love it. Smells wonderful, makes hair easy to brush. Smooth and light.

This is AMAZING! My hair is frizzy and has become broken from the heat during the keratin treatment. This product a) smells fab and b) my frizz has gone!!!! I probably put a bit much as it’s a little greasy so next time I’ll use it more sparingly. I can’t wait to try 1 and 2 this weekend prior to my next keratin to see if it reduces breakage. Already just from using olaplex 3 yesterday and olaplex 6 after each wash it’s made a difference. It hasn’t looked this healthy in forever - thank you Olaplex!!!!!

I’m a hair dresser and can’t recommend olaplex products enough. My hair is damaged from over bleaching and this made it feel so silky. A little goes a long way

I have thin, fine, bleached hair. This works better that any other defrizzer that I've tried, but I only need a really tiny drop - it's easy to overdo it and end up with a greasy slick

I use this product along with the olaplex no. 3. I have chemically damaged hair therefore in my case I still need to blowdry my hair for it to look good after using this product, however I have seen a lot of improvement with this product. Most importantly I no longer have to spend time using my hairdryer every morning, my hair still looks good in the morning as it does reduce significantly the frizz ( this is a great plus when you leave in a very humid country). My hair also feels much better. I suggest this product in combination with their no. 3 formula.

NOTHING has kept my hair frizz free better than this product. It's an unbelievably awesome product. I use it before blow dry then I also apply on dry sections where my frizz problem is the worst before flat ironing. I will continue to use this product and very much recommend it.

Really good result and love there’s no messing around or wait time. Excellent product.