Prunus Serotina Fruit Extract

Prunus Serotina (wild black cherry) fruit extract is typically used at low concentrations as a botanical antioxidant/skin-conditioning agent, but botanical extracts have variable composition and can contain trace sensitizing components (e.g., aromatic constituents) depending on extraction and standardization. Clinical patch-test data for this specific extract is limited, so for highly sensitive or eczematous skin I treat it as a mild but real risk rather than inherently “gentle,” especially in leave-on products and when layered with other actives. Safety Notes: In commercial skincare, Prunus serotina (wild black cherry) fruit extract is most often used as a minor botanical claim ingredient in multi-extract blends, where the effective in-formula level commonly falls in the ~0.0001–0.1% range (especially in leave-on lotions/serums and rinse-off cleansers). Higher concentrations are observed in consumer-available “botanical/fruit extract” toners, masks, and serums that are positioned as high-natural-content formulas, where single extracts can be used at ~1–5% depending on supplier potency and solvent system. There are no specific FDA/EU cosmetic maximum limits for this INCI, so upper use is primarily constrained by stability, color/odor impact, and irritation potential in leave-on products.