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HYDROXYPROPYLTRIMONIUM HYDROLYZED RICE PROTEIN.

Valuable CAS - / ANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

Hydroxypropyltrimonium Hydrolyzed Rice Protein is a cationic derivative of hydrolyzed rice protein, specifically engineered to deliver comprehensive hydration and anti-aging benefits to the skin. It works to enhance skin elasticity, support barrier integrity, and promote a visibly smoother, more supple complexion.

Skin conditioning Moisturizing Anti-aging Antioxidant Soothing Barrier support Oil balancing Anti-pigmentation

Science

This ingredient functions synergistically across multiple skin layers. It significantly elevates the skin's intrinsic water content, resulting in profound moisturization and a noticeably more supple feel. By actively supporting the natural production of collagen and elastin fibers, it measurably improves skin elasticity and firmness, thereby mitigating the appearance of fine lines and wrinkles. Its potent antioxidant capabilities neutralize free radicals, protecting against oxidative stress. A fine, protective film is formed on the skin's surface, which not only seals in vital moisture but also acts as a shield against environmental aggressors. The small molecular size of its peptides and amino acids ensures effective penetration, bolstering collagen and elastin synthesis, strengthening the skin barrier, and facilitating cellular repair. Furthermore, it exhibits anti-irritant properties, calming inflammation and supporting normal keratinocyte function, while helping to balance sebum production without contributing to greasiness or pore obstruction.


Research

Medium confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

No data available regarding 'dusting' or common misrepresentation of concentration for this ingredient.


The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

As a quaternary ammonium salt, Hydroxypropyltrimonium Hydrolyzed Rice Protein is designed for broad pH stability across typical cosmetic formulation ranges. While the non-quaternized form of hydrolyzed rice protein may exhibit variable solubility depending on pH (lower around pH 4.6), this derivative's cationic nature ensures enhanced stability.


Safety

CIR Status
Not reviewed
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded the parent ingredient, 'Hydrolyzed Rice Protein', is safe for use in cosmetics (2006). While 'Hydroxypropyltrimonium Hydrolyzed Rice Protein' is a quaternized derivative and lacks a specific CIR report, it is broadly regarded as safe. SkinSAFE lists it as 'Teen SAFE', 'Lip Safe', 'Baby Safe', and free from irritants, fragrances, parabens, gluten, soy, propylene glycol, oil, dyes, and SLS, indicating a very favorable safety profile. General hydrolyzed proteins are approved as food additives by the FDA.


Your Skin

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

Our Assessment

Valuable

Hydroxypropyltrimonium Hydrolyzed Rice Protein is a valuable multifunctional ingredient, offering robust hydration, anti-aging benefits, and enhanced skin barrier support, suitable for a wide range of skin types and formulations.


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