TORMENTIL Liquid B is a botanical extract obtained from the root of Potentilla erecta (syn. Potentilla tormentilla). It is used as an anti‑inflammatory, antioxidant, whitening, and UV‑care active and is recommended for sensitive‑skin, anti‑acne, scalp, and hair‑care applications, with reported inhibition of melanogenesis, histamine release, and protection of elastin.