Lanolin Alcohol

Lanolin alcohol (wool alcohols) is an emollient fraction of lanolin used in ointments and barrier creams, often at low-to-moderate percentages, but it is a well-documented contact allergen in patch testing. While many users tolerate it, sensitization and flare reactions are notably more common in eczema and chronic dermatitis populations, where barrier impairment increases risk. Given this clinically meaningful delayed hypersensitivity potential in a high-risk group, a moderate irritancy score is the safest evidence-aligned assessment. Safety Notes: In commercial skincare, lanolin alcohol is often used at low levels (~0.05–1%) as an emollient/co-emulsifier and barrier-supporting lipid component in creams, lotions, and some cleansers, with even lower trace levels possible when part of lanolin-derived blends. Higher strengths are seen in consumer-available barrier ointments, lip balms, and intensive hand/heel salves where lanolin alcohol functions as a primary occlusive/emollient, commonly in the 5–20% range and occasionally reaching about 30% in very heavy, anhydrous or high-oil-phase leave-on products; rinse-off products typically sit at the low end due to feel and deposition limits.