Chlamydomonas Reinhardtii Extract

We confirmed this ingredient's definition and its registered function in public regulatory databases, but found no published study data on how the ingredient itself acts on the skin (checked by KAIAN, September 2026). We will update this page if new reports appear.

An extract derived from a green alga, formulated to moisturize and condition the skin. Its registered functions in the EU cosmetic ingredient database (CosIng) are "humectant" and "skin conditioning"

An extract of the green alga Chlamydomonas reinhardtii (definitions from JCIA ingredient no. 564581 and CosIng). No published study applying it topically to human skin could be confirmed, so the mechanism of action is unconfirmed. "Chlamydomonas Reinhardtii Vesicles" (extracellular vesicles), whose name is similar, is a different ingredient

No public data on typical concentrations in cosmetics could be confirmed

Unconfirmed (no public data on the time to a perceptible effect could be confirmed)

Do not apply findings from similarly named but different ingredients, such as "Chlamydomonas Reinhardtii Vesicles", to this ingredient. Drug-like efficacy claims are not permitted