Lens Esculenta Seed Extract

Lens esculenta (lentil) seed extract is primarily used as a soothing/antioxidant or barrier-supporting botanical at low concentrations (typically <1–3%) and is generally well-tolerated in routine use. However, as a plant-derived extract containing multiple bioactive fractions, it carries a non-zero risk of irritant or allergic contact reactions in highly reactive or eczematous individuals, especially when layered with other actives. Given the limited standardized patch-test data across sensitized populations, I score it as gentle rather than very gentle for patient safety. Safety Notes: In commercial skincare, Lens esculenta (lentil) seed extract is most often a supporting botanical used at very low levels (around 0.0005–0.1%) in leave-on serums/creams and rinse-off cleansers, reflecting typical supplier-recommended use rates for standardized glycerin/butanediol extracts. Higher concentrations are seen in consumer-available “pore/refining” or firming leave-on products that feature lentil extract as a highlighted active, where finished-formula levels can reach ~1–5% depending on the extract’s carrier/standardization. There are no specific FDA/EU cosmetic maximum limits for this botanical extract, so practical maxima are driven by stability, sensorial impact, and preservative/solvent load rather than regulation.