Lithothamnioncalcareum Extract (Red Algae)

Lithothamnion calcareum extract is a marine botanical derived from red algae that supplies trace minerals and polysaccharides. It lightly conditions skin, adds watery hydration, and improves glide and spreadability in formulas.
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Ingredient Snapshot

Overview
A red algae extract that adds light hydration and a soft feel.
Category
Skin Conditioning, Soothing
Type
Botanical Extract

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Lightly boosts surface hydration and leaves skin feeling soft and comfortable without heaviness, though the supporting data are limited.

Uses In Skincare & Cosmetics

Used in serums, gel creams, and moisturizers, as well as hydrating essences and sheet masks for a light, watery skin feel.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Typically well tolerated with low irritation potential, but patch test if you're reactive to marine ingredients or iodine. No widely recognized cosmetic-use restrictions.

Is Lithothamnioncalcareum Extract (Red Algae) a Good Ingredient?

Fair fits: the mineral and polysaccharide content offers light conditioning, but clinical support is modest. Marine-derived materials like this can also bother those sensitive to seaweed or iodine.

Products with Lithothamnioncalcareum Extract (Red Algae)

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