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Moumoujus

ORYZA SATIVA SEED PROTEIN.

Valuable CAS - / ANTIOXIDANT

Oryza Sativa Seed Protein, derived from rice, is a multifunctional skincare ingredient rich in peptides and amino acids. It is recognized for its ability to hydrate, fortify the skin barrier, and enhance overall skin resilience, contributing to a visibly smoother and more radiant complexion.

Summary

Antioxidant Skin-conditioning Moisturizing Skin Barrier Support Collagen Production Enhancement Cell Renewal Promotion Elasticity Improvement

Science

Mechanism of Action

This ingredient functions by supplying essential peptides and amino acids that actively support the skin's natural regenerative processes. It demonstrably enhances the skin's hydration capacity and elasticity, while promoting the synthesis of collagen for improved structural integrity. Furthermore, Oryza Sativa Seed Protein strengthens the skin's natural barrier against environmental stressors and moisture loss, simultaneously promoting cellular turnover to mitigate the appearance of fine lines and impart a youthful glow. Its antioxidant properties help neutralize damaging free radicals.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 An aqueous extract of rice callus, at a concentration of 3200 µg/mL, achieved 85% inhibition of melanin biosynthesis in skin-whitening related tests. (Note: This study was on rice callus extract, not directly Oryza Sativa Seed Protein.)

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 5.5 – 11
0 7 14

Stability

While albumins within rice protein are water-soluble, glutelins, the predominant protein fraction, may require specific processing to enhance their solubility significantly, potentially reaching over 90%. Optimal activity for certain rice proteases is observed at pH 5.5, maintaining stability within a pH range of 5 to 9. Conversely, highly acidic conditions, around pH 3, can induce protein unfolding, impacting structural integrity and function. For rice protein isolate, a pH shift treatment to pH 10-11 has been shown to improve solubility and emulsion stabilization properties.

Conflicts

  • Low pH (around pH 3) can lead to protein denaturation and potential loss of functional properties.
  • Potential binding to hydroxyl and aromatic groups in phenols at acidic pH.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The CIR Expert Panel concluded that hydrolyzed rice protein and hydrolyzed rice bran protein are safe for use in cosmetics. While isolated instances of allergy to raw rice have been documented, rice is generally regarded as non-allergenic in topical applications. It is imperative that all rice-derived cosmetic ingredients adhere to established limits for contaminants such as pesticides and heavy metals.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Oryza Sativa Seed Protein is a valuable ingredient, offering broad benefits from skin conditioning and barrier support to anti-aging properties, making it suitable for a wide range of skin types and formulations.

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