Hydrolysed wheat protein is a wheat-derived protein broken into smaller peptides and amino acids, used in skincare and haircare to provide moisturisation, film-forming conditioning, and improved skin/hair feel. It functions mainly as a cosmetic conditioning agent rather than a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or transient redness | Uncommon | Generally mild and self-limiting, more likely in sensitive or compromised skin. |
| Allergic contact dermatitis | Rare | Documented sensitisation in some individuals, sometimes linked to gluten/wheat-derived peptides. |
| Contact urticaria / immediate-type hypersensitivity | Rare | Cases reported particularly with certain hydrolysed wheat proteins (e.g., higher molecular weight forms in facial products), occasionally with systemic reactions. |
| Wheat-dependent exercise-induced anaphylaxis (sensitisation via skin) | Very rare | Notably linked to a specific hydrolysed wheat protein (Glupearl 19S) used in a facial soap in Japan, leading to food allergy in some users. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.