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Key Benefits
Powerful Results
*When used as a system of Nº 3, Nº 4, and Nº 5.
90%
smoother, better detangling, more conditioned*
49%
reduction in breakage
Results With One Use
BEFORE
AFTER
UNRETOUCHED IMAGES*
*Results may vary.
Watch It In Action
Recommended Routine
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Take the QuizCommon Questions
Nº.4 Bond Maintenance® Shampoo is formulated for daily use, or however frequently you wash your hair.
Nº.4 Bond Maintenance® Shampoo is a highly concentrated formula; a little bit goes a long way. OLAPLEX recommends starting with a dime size amount and add more as needed.
Yes, Nº.4 Bond Maintenance® Shampoo is color-safe.
No, Nº.4 Bond Maintenance® Shampoo is free of SLS/SLES sulfates.
Yes, curly hair can also benefit from this shampoo.
Reviews
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1 to 8 of 3301 Reviews
1 – 8 of 3301 Reviews
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Anonymous
5 out of 5 stars.
Smooth and healthy hair
13 hours ago
I just love this Hair Shampoo by Olaplex. It is a game changer for dry and frizzy hair like mine. I could see noticeable volume without weighing my hair down with just first wash. The formula feels luxurious and lathers well, leaving hair clean, soft, very light and full of body. With consistent use, it visibly improves hair texture and resilience. Plus, the scent is subtle and refreshing. A little goes a long way, making it worth the investment. Highly recommended for anyone looking to smoothen hair, boost volume while repairing and protecting their hair.
Helpful?
5 out of 5 stars.
Saved my hair! 10/10
6 days ago
About 6 weeks ago I went to the hair dressers to have my hair bleached from black box dyed hair to brown auburn. It completely destroyed my hair and I lost half my fringe through so much damage! A friend recommended Olaplex and my hair has improved so much, I’m shocked. I started with no 5 leave in conditioner (which is 10/10) and after such good results, even after one use, I then went and bought the shampoo (no4) and conditioner (no5) . My hair feels and smells clean and I really like using them as a complete process. At the moment I’m using them for every wash to try and repair my hair as quickly as possible, and it is now growing back rather than constantly breaking at the ends. My hair no longer feels and looks like straw. So far all Olaplex products I’ve used have been 10/10!
Did this product help address any of the following hair concerns:Dullness / Lack of Shine, Frizz, Breakage / Weakness / Visible Damage, Dryness
Would you descibe your hair as:Weak and Damaged
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Olaplex No.4 is seriously impressive
7 days ago
It’s sulfate-free, gently cleanses without drying out my hair, and leaves it feeling soft, healthy, and smooth.
Even a small amount lathers up really well, so the bottle lasts a long time. Perfect for dry, frizzy, wavy hair like mine!
Would you descibe your hair as:Dry
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
love
8 days ago
i love this shampoo, my cousin who is a ex hairstylist recommend this to me. I've dyed my hair for the first time. I've bought olaplex before from drug stores and i would have chest pain and hedaches. So happy to buy the real thing.
Did this product help address any of the following hair concerns:Breakage / Weakness / Visible Damage, Dryness
Would you descibe your hair as:Colored / Chemically treated
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Highly recommend 4 and 5.. great product
8 days ago
The 4 and 5 are excellent and worth every cent.. I use these weekly and am so happy with the condition of my hair since using.. also use number 3. I use a small amount of 3 after my wash and couldn’t be happier. Well worth the money and my hair (bleached) is in great condition since using!
Did this product help address any of the following hair concerns:Dullness / Lack of Shine, Breakage / Weakness / Visible Damage, Dryness
Would you descibe your hair as:Colored / Chemically treated
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Great ,Fabulous
26 days ago
Exelente , Best ever, change my live, I recommended
Did this product help address any of the following hair concerns:Frizz, Dryness
Would you descibe your hair as:Colored / Chemically treated
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Making my hair, hair again!
a month ago
My hair was irreparably damaged with over processed chemical straightening. It had the appearance of coconut fibre due to the damage. I could not get a comb through my hair as it would break and fall even with oiling or other treatments, products including leave in conditioner setc.
I remembered that Olaplex repairs bonds and purchased No 4 shampoo,5 conditioner and No 5 leave in conditioner My hair is much better with a regular regimen of oiling followed by shampoo and conditioner with No 4 shampoo & 5 conditioner. After my shower with my hair still wet I apply the leave in conditioner.
Helpful?
5 out of 5 stars.
My hair is looking so healthy now
a month ago
I picked a set up a month ago and the positive difference in my hair is noticeable. It's healthy looking, shiney, and the best my hair has felt in a long time. My sister asked what I was using. Found out she's using the same products!
Helpful?
