Kalanchoe Pinnata Leaf Extract

Kalanchoe pinnata leaf extract is a botanical soothing/anti-inflammatory extract typically used at low concentrations, but it is a complex mixture (flavonoids, organic acids, bufadienolides) with variable composition that increases unpredictability compared with single-molecule humectants. Robust human irritation/safety datasets are limited, and like many plant extracts it can trigger irritant or allergic contact dermatitis in a subset of sensitive or eczematous patients, especially in leave-on formulas or when combined with other actives. Given the limited clinical verification and the higher risk profile of botanicals in reactive skin, a mild irritancy score is the safest evidence-aligned choice. Safety Notes: In commercial skincare, Kalanchoe pinnata leaf extract is most often used as a minor botanical “support” ingredient in multi-extract blends or preservative-boosted soothing systems, where it can appear at trace levels around 0.0005–0.05% in leave-on creams/serums and rinse-off cleansers. Higher-end or “botanical-active” leave-on products (soothing, barrier, post-procedure, or anti-inflammatory positioning) commonly use ~0.1–1% depending on extract strength/solvent system. The upper end (~2–5%) is observed in consumer-available high-botanical gels/ampoules/essences that feature the extract prominently; above this is uncommon due to sensory, color/odor, and stability constraints rather than a specific global regulatory limit for the INCI itself.