Triticum Vulgare Protein

Triticum Vulgare (wheat) protein is used in low concentrations as a conditioning/film-forming humectant in hair and skin products, and it is generally well tolerated for most users. However, hydrolyzed wheat proteins have documented potential to trigger sensitization and allergic reactions (including contact urticaria and, more rarely, severe reactions) in a susceptible minority, which is particularly relevant for eczema-prone, barrier-impaired patients. Given this non-negligible allergenic/sensitization risk despite otherwise mild irritancy, a mild (0.4) score is the safer clinically aligned assessment. Safety Notes: In real-world skincare and hair-adjacent cosmetic products, Triticum Vulgare (Wheat) Protein is often used as a film-forming/conditioning claim ingredient at very low levels (~0.01–0.1%), especially in leave-on lotions/serums and rinse-off cleansers where it appears mid-to-low on the INCI. Higher-load consumer products such as conditioning masks, “protein” treatments, and some barrier/firming creams commonly use ~0.5–2%, and the highest OTC consumer-available formulas typically top out around ~3–5% due to viscosity, tack/film feel, and stability/compatibility constraints rather than a strict regulatory cap (with hydrolyzed forms generally better tolerated at the upper end).