Malpighia Emarginata Fruit Extract

Malpighia emarginata (acerola) fruit extract is primarily an antioxidant/brightening botanical used at low percentages, but it naturally contains organic acids and vitamin C-related constituents that can be irritating on compromised or eczematous skin. Botanical extracts also carry a non-trivial risk of irritation or sensitization from trace components, especially in leave-on products and when layered with other actives. Given the sensitive-skin population and the potential for stinging/redness despite low typical concentrations, a mild irritancy score is the safer clinically-aligned assessment. Safety Notes: In mass-market leave-on lotions/toners/cleansers, Malpighia Emarginata (acerola) fruit extract is commonly used as an antioxidant/“vitamin C fruit” marketing extract at very low levels (often ~0.001–0.1%), especially when supplied in glycerin/water with low active solids. The upper end is represented by consumer-available antioxidant serums, masks, and ampoules that use high loading of botanical extracts or concentrated extract solutions, where acerola extract can reach ~5–10% (higher is uncommon due to color/odor, stickiness, and stability constraints rather than regulation). Rinse-off products typically sit toward the low end, while high-strength leave-on treatments account for the top of the observed range.