56%
would repurchase
3.6/5
package quality
package quality
price range
description
A shampoo that cleanses, repairs, protects and strengthens your hair. Repair bonds while gently cleansing all types of hair. Impart moisture, strength, and manageability with every wash. A highly moisturizing, reparative shampoo that leaves hair easy to manage, shiny, and healthier with each use. A shampoo that cleanses, repairs, protects and strengthens your hair. Repairs and maintains bonds within the hair; Eliminates frizz and flyaways; Reduces breakage. This shampoo repairs and protects hair from everyday stresses—including damaged hair, split ends, and frizz—by re-linking broken bonds. No.4 is color-safe and proven to reduce breakage and strengthen all types of hair.
Reviews
Reviews
I’ve never loved a shampoo. I honestly thought they were all the same. That was definitely a misconception. This shampoo is unbelievably amazing. After one use of this, my hair was left silky,...
About reviewer (45 reviews)
Age44-55
SkinOther, Other, Not Sure
HairOther, Other, Other
EyesOther
I am not so sure I have ever rated a shampoo with 5 stars before, and I’d give this an even higher rating if it were an option. Prior to discovering and trying this, I only washed my roots...
About reviewer (572 reviews)
Age44-55
SkinDry, Fair-Medium, Warm
HairBlack, Curly, Coarse
EyesBrown
This is my go-to shampoo. Sometimes, I feel that it doesn’t get my hair clean enough, but will let it sit or massage it in for another minute, and it feels more fully clean. This is the only...
About reviewer (1 reviews)
Age44-55
SkinNormal, Fair
HairBlond
EyesOther
A lot of money for a big disappointment.. Makes my hair feel and look dry and frizzy. Used it for a while to give it a chance, but it only got worse! This goes for the shampoo, the conditioner as...
About reviewer (16 reviews)
Age56 & Over
SkinNormal, Fair
HairBrunette
EyesOther
Sign. I started using this brand over a year ago and at first I thought it was the s***. My hair is fragile, thinning, weakened by chemical lightening, age, thyroid medication, age, stress,...
About reviewer (570 reviews)
Age56 & Over
SkinDry, Fair, Cool
HairBlond, Straight, Fine
EyesBlue
Horrible! I will not purchase this again. Unfortunately, online you can only find the good reviews, everyone saying it's so perfect, hydrating, reconstructing your hair from inside out, etc., etc....
About reviewer (137 reviews)
Age30-35
SkinNormal, Fair, Warm
HairBrown, Straight, Fine
EyesGreen
This shampoo is the best I've used for the condition of my hair now, which is bleached. It changed the texture of my hair, and my hair is actually less damaged now when I highlight it, like it...
About reviewer (49 reviews)
Age56 & Over
SkinCombination, Other, Not Sure
HairBlond, Other, Other
EyesHazel
Nothing special. I have fine, long hair. Nice rice lather, but the smell is nothing to write home about, nothing special about this shampoo (or condition for that matter). Especially for the price...
About reviewer (82 reviews)
Age36-43
SkinCombination, Fair-Medium, Not Sure
HairBrunette, Other, Other
EyesHazel
When this and the No5 conditioner came out, they were hugely lauded as the best s+c duo since the dawn of time and since I was using the No1, 2, and 3 anyway, it was logical for me to want to give...
About reviewer (364 reviews)
Age30-35
SkinCombination, Fair, Warm
HairBrown, Straight, Medium
EyesBlue
I blind bought a 2 litre (!!!) size of this. Such was my faith. I’d already tried Olaplex no.1 and no.2 from its first inception and it was absolutely a game changer. That phrase is used so often,...
About reviewer (134 reviews)
Age36-43
SkinCombination, Fair
HairBrunette
EyesHazel
I’ve never loved a shampoo. I honestly thought they were all the same. That was definitely a misconception. This shampoo is unbelievably amazing. After one use of this, my hair was left silky,...
About reviewer (45 reviews)
Age44-55
SkinOther, Other, Not Sure
HairOther, Other, Other
EyesOther
I am not so sure I have ever rated a shampoo with 5 stars before, and I’d give this an even higher rating if it were an option. Prior to discovering and trying this, I only washed my roots...
About reviewer (572 reviews)
Age44-55
SkinDry, Fair-Medium, Warm
HairBlack, Curly, Coarse
EyesBrown
This is my go-to shampoo. Sometimes, I feel that it doesn’t get my hair clean enough, but will let it sit or massage it in for another minute, and it feels more fully clean. This is the only...
About reviewer (1 reviews)
Age44-55
SkinNormal, Fair
HairBlond
EyesOther
A lot of money for a big disappointment.. Makes my hair feel and look dry and frizzy. Used it for a while to give it a chance, but it only got worse! This goes for the shampoo, the conditioner as...
About reviewer (16 reviews)
Age56 & Over
SkinNormal, Fair
HairBrunette
EyesOther
Sign. I started using this brand over a year ago and at first I thought it was the s***. My hair is fragile, thinning, weakened by chemical lightening, age, thyroid medication, age, stress,...
About reviewer (570 reviews)
Age56 & Over
SkinDry, Fair, Cool
HairBlond, Straight, Fine
EyesBlue
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