Lavender essential oil (Lavandula angustifolia) is a multifunctional active in hair cosmetology: its terpene esters — primarily linalyl acetate (MW 196 Da, ~40–50%) and linalool (MW 154 Da, ~25–35%) — exert an anti-inflammatory action on the scalp, a mild antimicrobial and an antistatic effect on the fiber. Hairswiss analyzes the exact chemistry and mechanism of action on the hair structure.