Science
Mechanism of Action
This extract functions as an antioxidant, effectively preventing cellular damage and ingredient deterioration through the inhibition of oxygen-promoted reactions. Its inherent hygroscopic properties, combined with polysaccharides that form a thin, breathable film on the skin surface, ensure sustained hydration and superior emollient benefits. Crucially, it exhibits potent neuro-soothing and anti-inflammatory activity by significantly reducing the release of key inflammatory (IL-1α) and neuro-inflammatory (NGF) mediators. It further regulates TRPV1-related skin sensitization (pain receptors), leading to a measurable reduction in skin discomfort. Additionally, the extract boosts cellular renewal, stimulates microcirculation, enhances dermal elasticity, and visibly diminishes the appearance of lines and wrinkles, while refining overall skin texture.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 In in-vitro and ex-vivo models, Rhodosorus Marinus extract, at concentrations between 1% and 3%, demonstrated significant inhibition of IL-1α and NGF secretion, which are known pro-inflammatory and neuro-inflammatory mediators.
- 02 A clinical study involving 46 volunteers showed that a formulation containing this extract (Mariliance) reduced skin sensitivity by 30% compared to a placebo group over a 28-day period.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
No specific optimal pH range or detailed stability information is documented. The raw material is typically supplied as an aqueous solution, suggesting good stability in water-based systems.
Safety
Safety Profile
Specific regulatory review by CIR, SCCS, or FDA is not readily available. However, in-vitro cytotoxicity tests confirmed no toxicity on NHEK and NHA cells. Marine macroalgae are generally recognized for their favorable safety profiles in cosmetic applications. A commercial product containing this extract (Mariliance) is reported to be China compliant and COSMOS approved, indicating a broad acceptance for use.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Rhodosorus Marinus Extract is a valuable ingredient, particularly beneficial for sensitive and reactive skin due to its potent neuro-soothing and anti-inflammatory properties, while also delivering antioxidant protection and significant hydration.
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