Researched by Helena DeMaria-Williams
Formula IngredientThickenerCarrageenan
INCI: Carrageenan
Carrageenan is a natural polysaccharide extracted from red seaweed (Rhodophyceae family, including Chondrus crispus). In cosmetics it functions as a gelling, thickening, and stabilising agent that helps create smooth, uniform textures in formulations. It is widely used in hydrogel patches, serums, and cream-based products.
Category
Thickener
Irritation Risk
Low
Skin Types
all skin types
What does this do in a formula?
gelling agent, thickening, formula stabilisation, texture enhancement, film forming
Is Carrageenan safe? Key considerations
Can Carrageenan cause irritation?
Low RiskCarrageenan is generally well tolerated in topical cosmetic formulations. No EU CosIng Annex II or III restrictions apply. Note: degraded carrageenan (poligeenan) has raised concerns in oral/food contexts, but undegraded cosmetic-grade carrageenan used topically is considered safe by the CIR.
Does Carrageenan increase sun sensitivity?
No RiskCarrageenan does not increase photosensitivity.
Is Carrageenan safe during pregnancy?
SafeCarrageenan is a natural seaweed-derived polysaccharide with no systemic absorption from topical use. It is considered safe during pregnancy.
How does Carrageenan work?
Carrageenan is a natural polysaccharide extracted from red seaweed (Rhodophyceae family, including Chondrus crispus). In cosmetics it functions as a gelling, thickening, and stabilising agent that helps create smooth, uniform textures in formulations. It is widely used in hydrogel patches, serums, and cream-based products.
Individuals with known seaweed or carrageenan allergy (rare) should review the considerations above before use.
Which products contain Carrageenan?
Shop products that contain Carrageenan
