Snapshot
- Overview
- Seaweed-derived gel used in peel-off masks for a refreshed feel.
- Category
- Tone/Texture
- Type
- Film Former
Calcium Alginate
Calcium alginate is the calcium salt of alginic acid derived from brown seaweed, known for forming gels and films in water. It's used to create flexible, peelable textures, improve skin feel, and support uniform drying in mask and patch formats.
Like this ingredient?
Our take
Is Calcium Alginate a Good Ingredient?
It forms flexible, breathable films that improve application and contact time, which earns a Good rating, though it doesn't function as an active treatment and direct clinical skin benefits are limited.
What it does
Skin Benefits
Forms a light, breathable layer that helps keep skincare ingredients in contact with the skin, and leaves a refreshed, lifted feel as the layer sets and is removed.
Where you'll find it
Uses in Skincare & Cosmetics
Popular in peel-off masks, modeling masks, and patch formats to deliver an even application, and also used in in-clinic style gel masks and at-home treatments for tidy removal and minimal mess.
Before you use it
Safety
Generally non-irritating, though some may feel temporary tightness or mild mechanical irritation when peeling off mask formats. Suitable for most skin types when not over-dried.
Products with Calcium Alginate
