Pullulan
Natural polysaccharide produced by fermentation of Aureobasidium pullulans fungus. Forms a thin skin film and gives a temporary lifting effect.
Evidence by route
Topical application
Wrinkle smoothing works through film formation and disappears after washing. Pullulan does not deliver long-term anti-aging effects.
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
Pullulan is a linear polysaccharide of maltotriose units linked by α-1,6 glycosidic bonds, produced by fermentation of starch by the fungus Aureobasidium pullulans. Biodegradable, vegan, hypoallergenic, tasteless, and odorless. In cosmetics, it acts as a film-forming agent at 0.5–3%, creating a thin elastic film on the skin that temporarily tightens the surface and smooths fine lines (instant lifting effect). Found in anti-aging serums, eye creams, masks, makeup primers, and peel-off masks. The effect lasts 6–10 hours, until washed off. As the film dries, it gently tightens the skin – a sensation many users interpret as the product 'working,' even though pullulan has no long-term effect on skin structure. Also used as a thickener and emulsion stabilizer, and in pharmaceuticals as a gelatin alternative for capsule coatings. Safe for all skin types, suitable in pregnancy and breastfeeding, non-comedogenic, and non-allergenic. No known contraindications or interactions with active ingredients.
Frequently asked questions
Is Pullulan safe during pregnancy?
Pullulan is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Pullulan for?
Pullulan suits: oily, dry, sensitive, combination, normal.
What is Pullulan and what does it do in cosmetics?
Natural polysaccharide produced by fermentation of Aureobasidium pullulans fungus.
What's the INCI name for Pullulan?
The INCI name is Pullulan.
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