Science
Mechanism of Action
Operating primarily through its high concentration of rhamnan sulfate, a sulfated polysaccharide, Monostroma Nitidum Thallus Extract delivers substantial skin hydration by forming a protective film on the skin's surface. This film aids in retaining moisture and enhancing the skin barrier's function. Furthermore, the extract exhibits direct antioxidant activity, neutralizing free radicals, and offers photoprotective qualities against environmental stressors. In vitro data suggests its potential to stimulate the synthesis of collagen, which can contribute to improved skin elasticity and firmness. While anti-inflammatory properties have been observed, these were primarily noted in studies involving oral administration.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The primary active components, such as rhamnan sulfate, are generally poorly soluble in water in their native state but can be effectively solubilized and broken down into smaller, more bioavailable molecules through hot water extraction. The extract's mucilage component can function as a gelling, thickening, stabilizing, and water-holding agent within cosmetic formulations.
Safety
Safety Profile
No specific Cosmetic Ingredient Review (CIR) or Scientific Committee on Consumer Safety (SCCS) assessments are available for the topical cosmetic use of Monostroma Nitidum Thallus Extract. An FDA New Dietary Ingredient (NDI) notification indicates that a specific extract (Rhamnox 100/50) is reasonably expected to be safe for oral consumption in dietary supplements. Topical application, as evaluated by a Draize score test in a moisture mask, showed no instances of erythema, strongly indicating a low potential for skin irritancy.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Monostroma Nitidum Thallus Extract is a valuable marine-derived ingredient offering significant hydration, film-forming capabilities, and potential antioxidant, photoprotective, and collagen-stimulating benefits, with a low risk of irritation across various skin types.
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References
Sources