Bisabolol, also known as α-bisabolol or levomenol, is a naturally occurring monocyclic sesquiterpene alcohol primarily derived from the essential oil of German chamomile (Matricaria recutita) and the Candeia tree (Eremanthus erythropappus). It is renowned in the cosmetic industry for its potent anti-inflammatory, antimicrobial, and antioxidant properties, making it a valuable ingredient in skincare formulations. Bisabolol effectively soothes irritated skin by modulating inflammatory mediators such as interleukins IL-1β and IL-6, and tumor necrosis factor-alpha (TNF-α), thereby reducing redness and discomfort. Additionally, its antioxidant activity helps neutralize free radicals, protecting the skin from oxidative stress and premature aging.

In hair care, bisabolol offers significant benefits for scalp health. Its anti-inflammatory properties alleviate scalp irritations and itching, often caused by environmental aggressors or harsh hair treatments. Bisabolol also enhances the absorption of other active ingredients due to its lipophilic nature, improving the efficacy of hair care products. Furthermore, its antimicrobial effects help maintain a healthy scalp microbiome, reducing the occurrence of dandruff and other scalp conditions.