Ginkgo Biloba Leaf Extract

Ginkgo biloba leaf extract is primarily used as an antioxidant/soothing botanical at low concentrations, but botanical extracts are a common source of variability and can trigger irritation in reactive or barrier-impaired skin. Patch testing and case reports document occasional allergic contact dermatitis to ginkgo (especially in eczema-prone individuals), so despite being marketed as “gentle,” it carries a real sensitization risk. In routine multi-ingredient regimens, this makes it a mild but non-trivial irritant for sensitive populations. Safety Notes: In mass-market creams, toners, and cleansers, Ginkgo Biloba Leaf Extract is often used at very low levels (around 0.0005–0.05%) as part of multi-extract blends or at typical supplier-recommended add levels for botanical extracts, especially in rinse-off formats where cost and deposition are limiting. Mid-range leave-on serums and moisturizers commonly sit around ~0.1–1% depending on whether the listing refers to the raw extract or a standardized/dry extract. The upper end (~2–5%) is observed in consumer-available “high botanical” serums/ampoules and some gel creams where ginkgo is a featured claim ingredient; higher levels are uncommon due to color/odor, solubility, and stability constraints and are typically found in leave-on products rather than rinse-off.