Coenochloris Signiensis Extract

Coenochloris signiensis extract is a marine microalgal ingredient sourced from cold-water environments for cosmetic use. It's selected for antioxidant potential and a calming profile, though research is limited and outcomes depend on dose and product design.
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Ingredient Snapshot

Overview
A cold-water algae extract that may calm and protect skin.
Category
Antioxidant, Skin Conditioning, Soothing
Type
Botanical Extract

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Helps shield skin from oxidative stress and ease the look of redness or discomfort. Evidence is limited, so improvements may be subtle and formulation-dependent.

Uses In Skincare & Cosmetics

Common in calming serums, gel moisturizers, and after-sun essences aimed at stressed skin. Also appears in sheet masks for a soothing boost.

Comedogenic Rating

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

Safety

Generally considered low concern, but evidence is limited and marine extracts can trigger irritation in reactive skin, patch testing is prudent. Avoid use on compromised skin if stinging occurs.

Is Coenochloris Signiensis Extract a Good Ingredient?

Sparse clinical data; antioxidant and soothing claims are plausible for microalgae but remain formulation- and dose-dependent. Sensitive users may experience irritation or sensitization, so benefits may not outweigh risks for everyone. Those gaps in the evidence, plus the added risk, are why it sits at Fair.

Products with Coenochloris Signiensis Extract

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