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DIOSCOREA OPPOSITIFOLIA ROOT EXTRACT.

Valuable / SKIN CONDITIONING

Dioscorea Oppositifolia Root Extract, derived from the Chinese yam, is a multi-functional ingredient known for its potent antioxidant and anti-inflammatory properties. It aids in fortifying the skin's barrier, promoting hydration, and supporting cellular renewal to enhance skin's overall vitality and resilience.

Summary

skin conditioning antioxidant anti-inflammatory moisturizing collagen boosting barrier support sebum regulating (potential)

Science

Mechanism of Action

This extract operates by scavenging free radicals, thereby mitigating oxidative stress and its associated damage. It exhibits anti-inflammatory actions by inhibiting pro-inflammatory cytokines, reducing redness and irritation. Furthermore, it stimulates collagen synthesis, contributing to improved skin structure and reduced appearance of fine lines. It also reinforces the skin's natural protective barrier, enhancing moisture retention and increasing resistance to environmental stressors. Research suggests potential in reducing adipogenesis and regulating sebum production, particularly in related Dioscorea species.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 An in vitro study utilizing 200 mg/ml demonstrated increased skin moisture and enhanced cellular proliferation of human dermal fibroblast neonatal (HDFn), indicating potential for skin regeneration and hydration.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 10
0 7 14

Stability

Yam soluble proteins from Dioscorea opposita exhibit high solubility and effective emulsifying activity across a broad pH spectrum. While minimum solubility occurs around pH 3, solubility significantly improves as the pH moves away from this isoelectric point, notably at pH 1 and pH 10.

Safety

Safety Profile

CIR Status
Safe with restrictions (for related Dioscorea Villosa)
Max tested
15% (with 0.5% maximum solids from wild yam, specifically for Dioscorea Villosa)%
Sensitization risk Low

While no specific CIR assessment exists for Dioscorea Oppositifolia Root Extract, related Dioscorea species like Dioscorea Villosa (Wild Yam) are considered safe for cosmetic use by the CIR Expert Panel, provided the diosgenin content does not exceed 3.5%. The maximum reported use for Dioscorea Villosa was 0.3% in non-spray moisturizing products in 2022 and up to 15% (0.5% solids) in 1999. Although generally safe, sensitive individuals might experience mild allergic reactions such as skin rashes or itching. Specific SCCS or FDA status for Dioscorea Oppositifolia Root Extract is not currently established.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Dioscorea Oppositifolia Root Extract is a valuable ingredient, offering significant antioxidant, anti-inflammatory, and moisturizing benefits, making it suitable for a wide range of skin types and conditions.

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