Hesperidin Methyl Chalcone

Hesperidin methyl chalcone is a flavonoid derivative used mainly for vascular-support/anti-redness and antioxidant benefits, typically at low concentrations (about 0.1–1%) in leave-on products. Human experience and patch-test data suggest low inherent irritancy and low sensitization risk, but as a bioactive polyphenol it can rarely provoke stinging or dermatitis in highly reactive or eczematous skin. Given the sensitive-skin population and cumulative routine exposure, it fits best as very gentle rather than inert. Safety Notes: In commercial OTC skincare, Hesperidin Methyl Chalcone is most often used in leave-on eye/circulation-targeted products at low levels (~0.01–0.1%) as part of anti-dark-circle/anti-puffiness complexes (often paired with dipeptide/caffeine). Higher-strength consumer-available serums and vascular/redness-support creams can reach ~0.5–2%, with a small number of specialized OTC formulations listing up to ~3% as a primary active; above this becomes uncommon due to solubility, color/odor, and stability constraints. Rinse-off products, when they include it, generally sit toward the low end because contact time limits benefit.