Science
Mechanism of Action
This extract acts as a comprehensive skin conditioning agent, enriched with lipids, proteins, vitamins, and a high concentration of minerals that support skin revitalization and re-mineralization. Its extreme hygroscopic nature enables it to draw and retain moisture, functioning as a humectant to smooth and soften the skin. A key attribute is its content of mycosporine-like amino acids (MAAs), which deliver intrinsic UV filtering properties by absorbing radiation within the 275 to 364 nm range.
Research
Clinical Evidence
Medium confidence3-5%
Key findings
- 01 An aqueous extract at a 5% concentration demonstrated significant UV absorption between 275 and 364 nm, with a maximum absorption peak at 334 nm, indicating robust photoprotective properties for skin and hair.
Transparency
Dusting Analysis
The Formula
Formulation
Safety
Safety Profile
The Expert Panel for Cosmetic Ingredient Safety (CIR) determined that existing data are insufficient to conclude on the safety of Polysiphonia Lanosa Extract under its intended conditions of use in cosmetics. However, the Environmental Working Group (EWG) Skin Deep database assigns a 'LOW' hazard score, indicating minimal concerns regarding cancer, allergies, immunotoxicity, and developmental/reproductive toxicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polysiphonia Lanosa Extract is a valuable marine ingredient offering confirmed photoprotective benefits and significant skin conditioning properties, despite the current CIR designation of insufficient safety data.
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References
Sources