Science
Mechanism of Action
Primarily through its Hydrolyzed Rice Protein component, this ingredient elevates skin hydration by increasing water content, thereby promoting a supple and smooth complexion. It fortifies the skin's natural barrier, crucial for retaining moisture and offering defense against environmental aggressors. The amino acids contribute to boosting endogenous collagen synthesis and improving skin density, which helps to refine texture and reduce the visibility of fine lines and wrinkles. Functioning as a potent antioxidant, it effectively scavenges free radicals and mitigates oxidative stress. It further contributes to a brighter, more uniform skin tone by influencing tyrosinase activity. Its anti-inflammatory characteristics help to calm irritation and diminish redness, making it beneficial for sensitive skin, while also assisting in regulating sebum production, suitable for oily and acne-prone skin. The 'Hydroxypropyltrimonium' and 'Siloxysilicate' elements impart additional conditioning and film-forming attributes.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Hydrolyzed Rice Protein, at a 1% concentration, has been shown to increase hair volume by 13% to 32% with consistent use.
- 02 Rice Protein Hydrolysates demonstrated dose-dependent free radical scavenging activity against DPPH, achieving 50% inhibition (IC50) at 42.58 mg/g in an in vitro assay.
- 03 Rice Protein Hydrolysates exhibited dose-dependent free radical scavenging activity against ABTS, with an IC50 of 2.11 mg/g in an in vitro assay.
- 04 Rice Protein Hydrolysates achieved 50% inhibition of hyaluronidase activity at 8.91 mg/mL in an in vitro study.
- 05 Rice Protein Hydrolysates demonstrated 50% inhibition of tyrosinase activity at 107.6 mg/mL in an in vitro study.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal stability for Hydrolyzed Rice Protein is generally observed within a pH range of 4.0-7.0, with liquid forms demonstrating peak stability between pH 4-5. It is recommended to incorporate this ingredient into the cool-down phase of water-based formulations. When in its solid form, direct contact with strong oxidizing agents should be avoided due to the risk of combustion.
Conflicts
- Strong oxidants (in solid form)
Safety
Safety Profile
Although the specific compound has not undergone individual review by the CIR Expert Panel, its base, Hydrolyzed Rice Protein, has been affirmed as safe for cosmetic use. The specific ingredient, HYDROXYPROPYLTRIMONIUM HYDROLYZED RICE PROTEIN/SILOXYSILICATE, is rated 'LOW' concern by EWG Skin Deep regarding cancer, allergies, immunotoxicity, and developmental/reproductive toxicity. SkinSAFE further identifies it as '100 Free', 'Teen SAFE', 'Baby SAFE', 'Eyelid SAFE', and free from common irritants such as fragrance, parabens, gluten, soy, and dyes, indicating a minimal potential for adverse reactions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is a valuable multi-functional active for skincare, offering substantial hydration, potent antioxidant defense, anti-aging benefits, and soothing properties suitable for all skin types, underpinned by a favorable safety profile.
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