Sclareolide

Sclareolide is a fragrance-related aroma compound (often used as a fixative in perfuming) and is typically present at low concentrations, but fragrance materials have a well-documented pattern of causing irritation or contact allergy in sensitized or eczema-prone individuals. While not among the most notorious fragrance allergens, its function and use-context (leave-on products, cumulative exposure with other fragranced items) justify a mild irritancy rating to protect highly reactive skin. Safety Notes: In commercial skincare, sclareolide is most often used as a low-dose odor modifier/skin-feel enhancer in fragranced emulsions and cleansers, with the lowest observed levels around 0.0005–0.005% (5–50 ppm) in leave-on and rinse-off formulas. Higher-dose uses occur in some “odor-control/deodorizing” body products and fragrance-forward lotions/serums where it functions as a fixative/active-like sensory component, reaching about 0.05–0.2% in consumer-available leave-on products. Levels above ~0.2% are uncommon in OTC skincare due to odor impact and sensitization/IFRA-style perfumery constraints, rather than a specific cosmetics-regulatory maximum.