Chondrus Crispus (Carrageenan) Powder
A polysaccharide from red algae. It thickens the formula and supports skin hydration. Well tolerated.
Evidence by route
Topical application
A functional thickener and humectant. 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
Chondrus crispus powder (INCI: Chondrus Crispus (Carrageenan) Powder), known as Irish moss, is a red seaweed rich in carrageenans. These polysaccharides act in a formula as thickeners and texture agents, and on the skin surface they form a film that helps hold water. This is a functional component with a supporting humectant touch, not a treatment active. It thickens gels and emulsions, gives a pleasant texture and improves the feel of hydration through that film. The effect is supportive, not corrective. In topical use it has no systemic relevance, so it can be used during pregnancy and breastfeeding without trouble. Tolerance is good, with low irritation and allergy potential, suitable for sensitive skin. Skin reactions to these seaweed polysaccharides are very uncommon.
Frequently asked questions
Is Chondrus Crispus (Carrageenan) Powder safe during pregnancy?
Chondrus Crispus (Carrageenan) Powder is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Chondrus Crispus (Carrageenan) Powder for?
Chondrus Crispus (Carrageenan) Powder suits: normal, dry, combination, oily, sensitive.
What is Chondrus Crispus (Carrageenan) Powder and what does it do in cosmetics?
A polysaccharide from red algae.
What's the INCI name for Chondrus Crispus (Carrageenan) Powder?
The INCI name is Chondrus Crispus (Carrageenan) Powder. It may also appear as: Carrageenan, Irish Moss Powder.
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