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GELIDIELLA ACEROSA EXTRACT.

Valuable CAS 223749-81-1 / SKIN PROTECTING

Gelidiella Acerosa Extract, derived from red algae, is a versatile ingredient prized for its significant hydrating, soothing, and skin-protective properties. It actively enhances the skin's moisture retention, calms irritation, and reinforces the natural barrier function for overall skin health.

Summary

skin protecting humectant anti-inflammatory antioxidant skin barrier support wound healing revitalizing re-mineralizing moisturizing

Science

Mechanism of Action

This extract operates through multiple mechanisms to improve skin condition. It contains phycocolloids such as agar and carrageenan, which function as powerful humectants, effectively attracting and binding moisture to the skin to maintain hydration, plumpness, and suppleness. Gelidiella Acerosa Extract exhibits anti-inflammatory properties, which help to alleviate redness, itching, and irritation. It also supports the improvement of skin barrier function, bolstering protection against environmental aggressors, and has been recognized for promoting wound healing. Rich in polyphenols, it demonstrates high antioxidant activity, crucial for preventing or decelerating oxidative stress-related damage. Additionally, as a general algae extract, it provides revitalizing and re-mineralizing effects, encouraging cell renewal through its diverse content of lipids, proteins, vitamins, and minerals.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

5%

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) has identified Gelidiella Acerosa Extract as a skin-conditioning agent but notes that further data is required for a comprehensive safety assessment. A reproductive toxicity study involving a crude extract of Gelidiella acerosa, administered orally to albino rats at a 1000 mg/kg dose, did not reveal significant adverse changes during gestation. Furthermore, acute oral toxicity studies on other red algae extracts typically indicate low toxicity, with LD50 values generally exceeding 2000 mg/kg. While these studies suggest a generally low toxicity profile, a formal CIR or SCCS 'safe as used' status, including a defined maximum concentration for topical cosmetic applications, is not yet explicitly established in the available research.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Gelidiella Acerosa Extract is a valuable ingredient, providing notable hydrating, soothing, and protective benefits across all skin types, attributed to its humectant and antioxidant properties, despite the current 'insufficient data' status from CIR.

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References

Sources