Hydrogenated Lecithin
Phospholipid from soy or sunflower raw materials, hydrogenated for greater stability. Works as an emulsifier and integrates into the skin lipid barrier.
Evidence by route
Topical application
Phospholipids form part of cell membranes, so the skin tolerates hydrogenated lecithin well. No large standalone RCTs exist.
How to read tiers A–F
- CWeak evidence. In vitro data, open-label studies, or expert consensus
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Oily, Dry, Sensitive, Combination, Normal
About this ingredient
Hydrogenated Lecithin is a phospholipid mixture from soy or sunflower raw material, saturated with hydrogen for greater oxidative stability. Main component – phosphatidylcholine, structurally close to skin cell membranes. Mechanism. Acts as a "liquid-crystal" emulsifier – forms lamellar structures resembling natural intercellular lipids of the stratum corneum. This helps it integrate into the lipid barrier and hold water within it. The hydrogenated form resists oxidation and avoids a soy odor. Where applied. Barrier-repair creams, products for atopic and sensitive skin, post-procedure care, liposomal serums (0.5-5%). In Spain in La Roche-Posay Toleriane, Eucerin AtopiControl, Sesderma Atopises. Evidence base. Topical phosphatidylcholine improves skin barrier function and reduces TEWL – shown in Ghyczy 2001 and Korting 1995. Direct clinical RCTs on the hydrogenated form specifically are few; data are extrapolated from lecithin in general. Safety. CIR rated lecithin and its hydrogenated form safe at current concentrations (2001, re-evaluated 2017). Allergy is rare; theoretical risk in patients with severe soy allergy – with pure raw material residual proteins are removed. Sunflower-derived variant is preferable in soy-sensitized patients. Pregnancy – safe topically. Lactation – no topical-use data, but absorption is minimal.
Frequently asked questions
Is Hydrogenated Lecithin safe during pregnancy?
Hydrogenated Lecithin is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Hydrogenated Lecithin for?
Hydrogenated Lecithin suits: oily, dry, sensitive, combination, normal.
What is Hydrogenated Lecithin and what does it do in cosmetics?
Phospholipid from soy or sunflower raw materials, hydrogenated for greater stability.
What's the INCI name for Hydrogenated Lecithin?
The INCI name is Hydrogenated Lecithin. It may also appear as: Lecithin Hydrogenated.
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