Hydrolyzed Opuntia Ficus-Indica Flower Extract

Hydrolyzed Opuntia ficus-indica (prickly pear) flower extract is primarily used as a soothing/humectant botanical at low concentrations, and botanicals of this type are generally well tolerated in routine patch testing when properly preserved and formulated. However, as a plant-derived extract (and hydrolyzed material), it carries a non-zero risk of irritant or allergic contact dermatitis in highly reactive or eczema-prone patients, particularly with leave-on use alongside other actives. Given the limited standardized clinical irritancy data specific to the flower hydrolysate and the need to err on patient safety, a gentle-but-not-exceptional score is appropriate. Safety Notes: In commercial leave-on products (serums, essences, creams), hydrolyzed cactus-flower extracts are often used as low-level “label actives” around 0.001–0.05%, frequently because the marketed supplier blend is dosed at ~0.1–1% but contains only a small fraction of the actual extract solids. At the high end, a few consumer-available ‘booster’/ampoule-style or minimalist formulas using the neat extract (or high-solids concentrate) can reach ~1–3% active-in-formula, above which sensory, color/odor, and stability constraints typically limit use; rinse-off products generally sit toward the lower half of the range due to short contact time.