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Ingredient guide
lithothamnium calcareum extract
In short
Lithothamnium calcareum extract is a mineral-rich red algae extract supplying calcium, magnesium, and trace minerals. It’s included in formulas that aim to support barrier comfort and overall resilience.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Barrier
Best used
Anytime
What it is
Calcified red algae extract supplying bioavailable calcium, magnesium, and trace minerals in a porous matrix; used in mineral-rich barrier-support formulations; INCI spelling variant of the lithothamnion form already catalogued.
Also found as
Related
Common questions
It delivers gentle mineral support that can help reinforce the skin’s surface and improve the feel of dryness or tightness.
It’s suitable for most skin types and often used in mineral-focused, barrier-supporting moisturisers.
You’ll usually find it in creams or masks where it complements hydrating and lipid-replenishing ingredients.
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Personal guidance only · For clinical concerns, see a dermatologist.