Alanine

Non-essential amino acid. Part of the skin's natural moisturizing factor (NMF), humectant.

Evidence by route

Topical application

Limited evidence. One RCT or several controlled studies with limitations.

NMF component. Safe, supports hydration.

Irritation potential

Low

Allergen risk

Low

Pregnancy

Safe

Suitable for

NormalDryOilyCombinationSensitive

Is Alanine safe during pregnancy?

Alanine is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.

What skin types is Alanine for?

Alanine suits: normal, dry, oily, combination, sensitive.

What is Alanine and what does it do in cosmetics?

Non-essential amino acid.

What's the INCI name for Alanine?

The INCI name is Alanine. It may also appear as: L-Alanine.

Published: May 14, 2026 · updated: May 14, 2026