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Li

Lithothamnion Calcareum Extract

Lithothamnion Calcareum Extract · Lithothamnion Calcareum Powder

A calcified red algae used as a mineral source — calcium, magnesium, and trace elements, with a slightly chalky feel.

What it does

It adds minerals like calcium and magnesium and gives a slightly chalky feel. It’s a slow-growing red seaweed with a hard, chalky skeleton, used powdered or as an extract in a supporting role.

The EU’s ingredient database lists it as a skin conditioner, its general term for an ingredient that keeps skin in good condition.European Commission, CosIng (© European Union, CC BY 4.0) · uses put in plain words by Drop ↗

The evidence, graded

expert consensusUS safety reviewers (2021) assessed 60 ingredients from red seaweeds. They judged 16 safe as used, but had too little data to judge the other 44, Lithothamnion calcareum extract and powder and Furcellaria lumbricalis extract among them. Depending on the ingredient, they needed data on effects in the body, on allergy, or both.Cosmetic 2021 · Cosmetic Ingredient Review ↗

Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.

Also known as

red algae mineral extract, maerl extract

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