Science
Mechanism of Action
This ingredient's efficacy is attributed to mycosporine-like amino acids (MAAs), particularly shinorine and porphyra-334, which function as natural UV filters by absorbing maximally at 335 nm. It provides potent antioxidant protection by reducing lipid peroxidation caused by UVA radiation, thus mitigating light-induced skin aging, fine lines, and wrinkles. Porphyra Umbilicalis also promotes the synthesis of stress-protective proteins, stimulates collagen production for improved elasticity and firmness, and acts as a humectant to enhance skin hydration. Furthermore, it exhibits anti-inflammatory effects and can contribute to reducing hyperpigmentation by inhibiting melanin transfer.
Research
Clinical Evidence
Medium confidence5%
Transparency
Dusting Analysis
Porphyra Umbilicalis Powder offers distinct, clinically supported benefits as a UV filter, antioxidant, and anti-aging agent, making it a functional active ingredient rather than a 'dusted' one.
The Formula
Formulation
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel, in a March 2021 tentative report, concluded that data for Porphyra Umbilicalis Extract were insufficient to determine safety, specifically citing a lack of systemic toxicity and/or sensitization data. Although Porphyra umbilicalis is authorized as a vegetable and condiment in France with specific limits for toxic minerals and metals, it is not explicitly listed as FDA GRAS.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Porphyra Umbilicalis Powder is a valuable ingredient offering significant photoprotection, anti-aging, and hydrating benefits, though the CIR Expert Panel has noted insufficient data for a full safety assessment.
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References
Sources