Gleditsia Triacanthos Seed Extract

Gleditsia Triacanthos (honey locust) seed extract is a botanical used mainly as a film-forming/conditioning and texture-enhancing ingredient, typically at low concentrations (often <1–2%) in leave-on products. While it is not a well-characterized high-risk active, botanical extracts contain complex proteins/polyphenols that can trigger irritation or allergic contact dermatitis in reactive or eczema-prone patients, and the lack of robust standardized patch-test data warrants a cautious rating. In routine skincare layering, it is unlikely to be a primary irritant for most users, but occasional sensitivity is plausible in highly reactive individuals. Safety Notes: In commercial INCI-labeled skincare, Gleditsia Triacanthos Seed Extract is typically used as a botanical/functional extract (often supplied in a solvent carrier), so it appears at very low levels (~0.001–0.05%) in mass-market leave-on products where it is part of a broader plant-extract blend. More prominent positioning in “tightening/firming” serums, masks, and specialty leave-on treatments can push use levels into the ~0.5–2% range, with the highest consumer-available formulations observed around ~5% when brands use a concentrated extract solution as a key active. No specific global maximum is set for this INCI, so the practical upper bound is driven by supplier recommended use levels, sensorial/tackiness limits, and stability rather than regulation.