Carrageenan
A thickener from red algae. It gives a gel texture, stabilizes the formula and forms a hydrating film on skin. Well tolerated.
Evidence by route
Topical application
A functional plant thickener. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Carrageenan is a polysaccharide obtained from red seaweed. INCI: Carrageenan. In a formula it works as a thickener, gelling agent, and stabilizer: it raises the viscosity of the water phase, forms a gel, keeps components in a uniform structure, and gives a light moisturizing film feel on skin. It is a functional rheology component, not a skincare active. It has no marked action on skin of its own. Pregnancy safety. The large molecule does not penetrate skin, is systemically negligible, and there is no evidence of harm with topical use. It can be used during pregnancy and lactation. Tolerance. Irritation and allergen potential are low, suitable for sensitive skin.
Frequently asked questions
Is Carrageenan safe during pregnancy?
Carrageenan is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Carrageenan for?
Carrageenan suits: normal, dry, combination, oily, sensitive.
What is Carrageenan and what does it do in cosmetics?
A thickener from red algae.
What's the INCI name for Carrageenan?
The INCI name is Carrageenan. It may also appear as: Chondrus Crispus.
See Carrageenan in a product composition right on the store page
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Ingredients in the same category
Carthamus Tinctorius (Safflower) Oleosomes, Castor Isostearate Succinate, Caviar Extract, Ceratonia Siliqua Fruit Extract, Glyceryl Stearates, Isostearic Acid, Polyglycerin-3, Tyrosine
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