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Researched by Helena DeMaria-Williams

Formula IngredientProtein / Skin Conditioning

Hydrolyzed Rice Protein

INCI: 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

What does this do in a formula?

skin conditioning, hydration, barrier strengthening, improved skin elasticity, smoothing texture, antioxidant protection, hair conditioning, antistatic

Is Hydrolyzed Rice Protein safe? Key considerations

Can Hydrolyzed Rice Protein cause irritation?

Low Risk

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.

Does Hydrolyzed Rice Protein increase sun sensitivity?

No Risk

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.

Is Hydrolyzed Rice Protein safe during pregnancy?

Safe

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.

How does Hydrolyzed Rice Protein work?

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.

Which products contain Hydrolyzed Rice Protein?

Shop products that contain Hydrolyzed Rice Protein