Our Take
A leave-in scalp treatment (No.0.5) targeting scalp health and longevity. Applied and left in — no rinsing required. Designed for all hair and scalp types. A relatively niche addition to the Olaplex lineup; less relevant for most curlies than the core bond-building products, but worth considering if scalp health is a specific concern alongside damaged hair.
Who is this for?
Our assessment — not the brand's claim
Curl Pattern
Porosity
Free From
Ingredients at a Glance
Water
Universal solvent and primary base of most hair products.
Glycerin
Powerful humectant that draws moisture into the hair shaft.
Propanediol
Plant-derived solvent and humectant that helps other ingredients penetrate.
C9-12 Alkane
A blend of lightweight synthetic hydrocarbons (C9–C12). Used as a volatile emollient and s…
Arginine
A conditionally essential amino acid that strengthens the hair shaft by contributing to ke…
Free From
Want to know more about an ingredient? Browse the ingredient glossary →
How to Use
Apply directly to the scalp on clean, damp, or dry hair. Massage in gently. Leave in — no rinsing required. Use regularly for best results.
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Where to Buy
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Olaplex
Brand Website
Details
- Type
- Scalp Serum
- Line
- Bond Building
- Price tier
- premium
- Routine step
- Treat
Reviews
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