Researched by Helena DeMaria-Williams
Formula IngredientProtein / Skin ConditioningINCI: Hydrolyzed Rice Protein
Hydrolyzed rice protein is a plant-derived ingredient produced by breaking down rice proteins through acid, alkaline, or enzymatic hydrolysis into smaller peptides and amino acids. These smaller molecules are better able to penetrate the upper layers of the skin and hair shaft, where they help attract and retain moisture. It functions primarily as a skin-conditioning and film-forming agent, helping to improve skin texture, elasticity, and barrier resilience.
Category
Protein / Skin Conditioning
Irritation Risk
Low
Skin Types
all skin types, sensitive skin, dry skin, acne-prone skin, ageing skin, dull skin
skin conditioning, hydration, barrier strengthening, improved skin elasticity, smoothing texture, antioxidant protection, hair conditioning, antistatic
Hydrolyzed rice protein is generally well-tolerated across all skin types, including sensitive skin. No significant irritation concerns are documented in CIR or EWG safety assessments (CIR: A — Safe; EWG: 1–2). No EU CosIng Annex II or III restrictions apply. Rare allergic reactions are theoretically possible in individuals with rice allergy; patch testing is advisable for highly reactive skin.
Hydrolyzed rice protein is not a photosensitising ingredient. It does not increase UV sensitivity and requires no additional sun protection precautions beyond standard daily SPF use.
No safety concerns have been identified for hydrolyzed rice protein during pregnancy. As a topically applied protein hydrolysate composed of amino acids and peptides, it has negligible systemic absorption and is not flagged in EWG Skin Deep or CIR safety assessments as a reproductive or developmental concern.
Hydrolyzed rice protein is a plant-derived ingredient produced by breaking down rice proteins through acid, alkaline, or enzymatic hydrolysis into smaller peptides and amino acids. These smaller molecules are better able to penetrate the upper layers of the skin and hair shaft, where they help attract and retain moisture. It functions primarily as a skin-conditioning and film-forming agent, helping to improve skin texture, elasticity, and barrier resilience.
Individuals with known rice protein allergy (rare) should review the considerations above before use.
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