Hair Science ✦
Trusted knowledge for healthier hair.
Evidence-aware guides informed by dermatology research, cosmetic science and professional hair-care knowledge — so you can make more informed choices for your hair.
Explore Hair Science topics
Scalp Care
General, cosmetic scalp education. Scalp symptoms can overlap with medical conditions, so these guides describe rather than diagnose.

Healthy Scalp Basics
The scalp is skin. General skin principles apply — and symptoms are described here, never diagnosed.
Well established
Dry Scalp vs Dandruff
General education on how these are usually described — not a way to identify what you have.
Supported
How Often Should You Wash Your Hair?
Wash frequency follows scalp behaviour, product use and lifestyle — a set of variables, not a rule.
Supported
Scalp Oils: Helpful or Overhyped?
Scalp oiling is a long-standing practice with real comfort benefits and limited evidence for growth claims.
Limited evidence
Scalp Massage & Hair Growth
The research on massage and hair growth is small and preliminary. That doesn't make it worthless — it makes it emerging.
Limited evidence
When Hair Loss Isn't a Hair-Care Problem
Some hair changes are outside what any cosmetic product can address. Recognising that early matters.
Well establishedWant personalized guidance?
Hair Science teaches the principles. Hairavie applies them to your hair.
Evidence-aware
Based on credible research and professional knowledge.
Credible sources
See the evidence behind important claims.
Always transparent
We show what's known, what's uncertain and where to learn more.
How Hairavie handles evidence
Your pattern isn't your whole hair profile
Pattern, porosity, strand thickness, density, scalp behaviour, chemical history and climate are separate readings — and Hairavie is explicit about which actually influence a Hair Match.
Ingredients aren't good or bad in isolation
A silicone can mean slip, shine and less friction. Whether it suits you depends on the formula and your routine. Hairavie analyses formulas, never fear lists.
Missing data lowers confidence, never invents certainty
Ingredient lists don't reveal concentrations. When formula data is incomplete, Hairavie says so instead of pretending to be sure.
Hairavie provides cosmetic hair-care education only. It does not diagnose or treat medical or scalp conditions. If symptoms persist or you're concerned about hair loss or scalp health, consult a qualified healthcare professional.