Alpha-Glucan Hydroxypropyltrimonium Chloride is a cationic, plant-derived polysaccharide (typically from starch) modified with quaternary ammonium groups. It functions as a hair and skin conditioning agent and film former, helping smooth and moisturize by depositing on negatively charged surfaces.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin or scalp irritation | Rare | Occasional reports; more likely with sensitive skin or high concentrations. |
Contact allergy / sensitization | Very rare | Quaternary ammonium compounds can rarely act as sensitizers, though this ingredient has low reported allergenicity. |
Eye irritation | Uncommon | Possible with accidental contact in rinse-off or leave-on products. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.