Tribehenin

Tribehenin is a non-volatile waxy lipid (triglyceride of behenic acid) used mainly as an emollient/thickener in creams, balms, and lip products, typically at low-to-moderate percentages, and it is not an active with pH-dependent irritation. As a large, inert fatty material it has very low irritancy and is generally well-tolerated in patch testing and in eczema-prone skin, with reactions being uncommon and more often related to overall formula factors rather than the ingredient itself. Given the need to be cautious for highly compromised skin while acknowledging its excellent tolerability, it fits “exceptionally gentle” rather than truly inert. Safety Notes: In commercial skincare, tribehenin is most often used as a minor viscosity builder/structurant and emollient in leave-on creams/lotions and cleansing balms, commonly appearing around ~0.1–2% when used mainly for texture and payoff. At the high end, it is found in consumer-available anhydrous balm/stick formats (e.g., cleansing balms, ointment-style barrier balms, solid moisturizers) where it functions as a primary lipid structurant and can reach roughly 10–25% depending on the oil/wax system. No specific EU/FDA concentration cap is established for tribehenin in cosmetics; practical limits are driven by melt profile, hardness, and sensory/stability constraints rather than regulatory thresholds.