Squalane

SQUALANE

A skin-identical emollient oil — hydrogenated squalene, stable, light, and near-universally tolerated.

emollienthair conditioningrefattingskin conditioningCAS 111-01-3

Why it works

Squalene makes up over a tenth of sebum; squalane is its shelf-stable cousin. It fills the gaps between corneocytes, reduces water loss, and restores slip without occlusive heaviness. It doesn't signal anything — it's a material, and a very good one.

The evidence, by concern

Dryness

Early evidence

Excellent emollient; trials test the cream, not the molecule

How sure are we

early

How much it helps

subtle

Do studies agree

strongly agree

Moisturizers built on squalane reliably improve hydration and barrier measures, and it is a standard base in dermatology-grade emollients. Isolated squalane trials are rare — the consistency here is formulation experience, not RCT volume.

The receipts

2 trials/reviews indexed · showing most cited

Safety, without the fear

Anchored to regulatory assessments — not hazard lists. Dose makes the poison; these are the conclusions at real-world cosmetic use.

CIR · Cosmetic Ingredient Review

CIR concluded squalane and squalene are safe as cosmetic ingredients; comedogenicity concerns belong to oxidized squalene, not stable squalane.

Source →

Spotted an error, or a study we missed? Claims were fact-checked against the cited literature in August 2026; independent clinical sign-off is pending — corrections welcome.