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Description
N°4 Shampoo repairs and protects hair from everyday stresses — including damaged hair, split ends, and frizz — by re-linking broken bonds. Leaves hair easier to manage, shinier and healthier with each use. N°4 is color-safe and proven to reduce breakage and strengthen all types of hair.
PH Balance: 6-6.5
Free of DEA, Aldehydes and Formaldehyde
OLAPLEX products are thoroughly tested in-house and by independent third-party laboratories for safety and efficacy. This product testing includes the industry standard Human Repeat Insult Patch Test (HRIPT), which tests for skin irritation or sensitivity. All of OLAPLEX products passed the HRIPT, meaning the products show no signs of causing irritation, inflammation, or sensitivity.
SKU OLA00242
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Overall rating: 5.0 / 5 from 12 reviews.
AI Generated Review Summary
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Review topics: ["hair","amount","shampoo"].
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Reviews
A little of this product
"A little of this product goes a long way. It's gentle on my hair, feels good on my scalp and father's up nicely. I'm very happy with this product."
Best shampoo!
"Best shampoo!"
Great product
"Great product"
Happy hair
"Great shampoo, does not dry out my hair!"
Great Shampoo
"Love this shampoo. It is a great everyday shampoo."
Fav shampoo
"A nice shampoo that works well for smoothing in combo with the conditioner."
Love this!
"I am loving this for my once damaged, curly hair. it is quite heavy though, so i have to use only a very small amount. even when my hair is long."
Staple
"Keeps the fizz out and the wave in my hair without weighing it down. Smells amazing too!"
Can’t be beat
"No better quality shampoo I’ve found, even at higher prices. Lasts a long time, too!"
Manageable hair
"Worked to make hair soft and manageable."