Malpighia Glabra Fruit Juice

Malpighia glabra (acerola) fruit juice is primarily used as an antioxidant/brightening botanical due to its high vitamin C and naturally occurring organic acids, typically included at low single-digit percentages in cosmetics. While not a classic “active acid,” fruit juices can be pH-lowering and contain variable profiles of acids and other plant constituents, which increases sting potential and the chance of irritation in eczema-prone or compromised skin compared with inert humectants. Given this variability and the higher reactivity of sensitive-skin populations, a mild irritancy score is the safest clinically aligned assessment. Safety Notes: In commercial skincare, Malpighia Glabra (acerola) fruit juice is often used at very low levels (~0.01–0.1%) as a supporting botanical/antioxidant claim ingredient in lotions, toners, and serums where the INCI reflects a diluted juice or juice-in-glycerin/water blend. Mid-range use (~0.5–5%) is common in “vitamin C/fruit antioxidant” masks and brightening leave-on products, while the highest consumer-available levels (~10–30%) are observed in niche, high-botanical content gels/essences and some rinse-off masks/cleansers that can tolerate higher juice loading (often with preservation/chelation and pH control due to sugars/organic acids).