Lecithin

Phospholipid derived from soy or egg yolk. In cosmetics it works as an emulsifier, humectant, and carrier for actives in liposomes. Found in many emulsions and serums. Hydrogenated lecithin is a more stable form and is listed separately.

Evidence by route

Topical application

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

As an emulsifier and liposomal carrier, lecithin reliably improves delivery of actives through the stratum corneum. It is a functional component rather than a standalone active.

van den Bergh BA et al. J Control Release. 1999;62(3):367-379.
Rahimpour Y et al. Expert Opin Drug Deliv. 2012;9(4):443-455.

Tolerability and safety

Irritation potential

Low

Allergen risk

Low

Pregnancy

Safe

Skin types

Suitable for

NormalDryCombinationSensitive

Frequently asked questions

Is Lecithin safe during pregnancy?

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

What skin types is Lecithin for?

Lecithin suits: normal, dry, combination, sensitive.