Epilobium Angustifolium Extract

Epilobium angustifolium (willowherb) extract is typically used at low concentrations as a soothing, anti-inflammatory, sebum-modulating botanical and is generally well-tolerated in clinical/consumer use, with low rates of irritant reactions compared with surfactants, acids, or retinoids. However, as a plant extract containing multiple bioactive constituents, it carries a non-zero risk of irritation or delayed sensitization in highly reactive or eczema-prone patients, especially in compromised barriers—so it cannot be scored as “very gentle” or “exceptionally gentle.” Safety Notes: In commercial skincare, Epilobium angustifolium (willowherb) extract is commonly dosed at low levels (~0.01–0.1%) in leave-on formulas (serums, moisturizers, toners) where it functions as a soothing/anti-redness or sebum-balancing botanical alongside other actives. Many supplier-recommended use levels for standardized willowherb extracts fall around 0.5–2% for leave-on products, and a small number of consumer-available ‘high-botanical’ or acne/redness-focused products push toward ~3% depending on extract type and solvent system. Rinse-off products generally sit toward the lower end due to short contact time and cost/solubility constraints, while the upper end is more typical of leave-on formulations.