My hair tends to be drier and prone to breakage because I highlight it. This has really saved my hair! It's softer and stronger.

My hair is re-braided on a month basis. I began using No. 3 with No. 0 monthly, about 2 years ago— after my braids are taken down (and prior to shampooing and conditioning). When since using the  0/3 combo, I have had less breakage after my braids are removed. A pleasant bonus that I was not expecting is that it helps me with my post-braid, detangling combo-through process. I have skipped a month, here and there, and I can definitely tell the difference - my hair misses it!  

Adding this to my olaplex routine added even more shine and strength to my hair. Highly recommend. Just wish the bottle was a bit better of a design as it involuntarily spills product when you flip it back upright.

It works great but it NEEDS TO BE PAIRED WITH OLAPLEX 3! It isnt very effective on it's own, but with 3 it's done wonders for my hair.

I use this once a week with the hair perfector and it last for r several days making my hair feel silky and shiny!!

The application makes you waste a lot of product and runs down face, into eyes, too easily. I skip this step because it’s annoying to use so I’m not sure if it works or not. 

Use this with Olaplex No. 3 and you will get shiny, healthy looking hair. It is a bit of a hassle, an added step to apply this and No. 3 before showering. I use it about once a month.

I have very fragile and thin hair. It seemed impossible to improve, even though I used absolutely no heat on it for over a year. After not seeing any improvement, and feeling bad about myself because my hair never looked styled, I bought the Dyson AirWrap because it doesn't go over 136 degrees & began using Olaplex 3. I used Olaplex 3 for at least 6 months. I tracked my hair progress with monthly photos. It greatly improved the appearance of my hair. I decided to start using Olaplex 0 in combination with the Olaplex 3 every week. I'm not sure that it helped anymore that just using 3 by itself. To save money, I switched to using just Olaplex 3 every week for at least 30 minutes on wet hair. I never skip - and then once a month I do an extra step by using the Olaplex 0 for 10 minutes first and then Olaplex 3 for 30 minutes. I believe I am losing far less to breakage and that's why it looks much thicker. My hairline is still very thin, but it has definitely improved. My hair is still certainly not my best feature, but at least I'm not embarrassed by it anymore.

5 Stat Product. From freeze dry to smooth and shiny hair.  Works even better if you buy the shampoo, conditioner, leave in and oil.  The great thing is that the bottles are small but a drop of this product comes a long way as it is concentrated. 

I definitely saw more of a difference when I used this along with the number 3 than just the number 3 alone. Definitely recommend