Actinidia Chinensis Fruit Extract

Actinidia chinensis (kiwi) fruit extract is primarily an antioxidant/conditioning botanical used at low percentages, but it can contain naturally occurring fruit acids and proteolytic enzymes (e.g., actinidin) that increase stinging risk on compromised barriers. Clinical experience and patch testing patterns with fruit-derived extracts show occasional irritant and allergy-like reactions in reactive/atopic individuals, so I rate it as mild rather than “gentle,” especially in leave-on products. Safety Notes: In mass-market leave-on skincare (serums, creams, toners) Actinidia chinensis (kiwifruit) extract is often used at very low levels (~0.0005–0.05%) as a label-claim botanical within complex antioxidant/fruit-extract blends. More “hero” botanical formulas and some consumer enzyme/brightening masks push dedicated use levels into the ~1–5% range, typically limited by supplier active strength, odor/color, and stability; rinse-off products can tolerate the upper end slightly more easily, while leave-on products more commonly sit below ~2–3%.