Snapshot
- Overview
- A cold-water algae extract that may calm and protect skin.
- Category
- Antioxidant, Skin Conditioning, Soothing
- Type
- Botanical Extract
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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Our take
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.
What it does
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.
Where you'll find it
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.
Before you use it
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.
Products with Coenochloris Signiensis Extract
