Hydrogenated Rapeseed Oil

Hydrogenated rapeseed oil is a saturated, high–molecular weight emollient/structuring lipid typically used at a few percent to improve texture and reduce transepidermal water loss, and it is generally well-tolerated in sensitive-skin moisturizers. True irritant reactions are uncommon, but in eczema-prone or highly reactive patients it can occasionally contribute to barrier occlusion-related discomfort or follicular issues, and rare allergy is possible due to trace impurities. Given these low but non-zero risks, it best fits a very gentle score rather than inert. Safety Notes: In commercial skincare, hydrogenated rapeseed oil is often used at very low levels (~0.1–2%) as a structuring/waxy emollient to adjust texture, viscosity, and payoff in lotions, cleansers, and cream-gel systems (leave-on or rinse-off). At the high end, it appears in consumer-available anhydrous/balm formats (cleansing balms, body balms, lip balms, solid moisturizers) where it can function as a primary or co-primary wax/oil structurant, reaching ~20–60% depending on the hardness/solid-stick target. There is no specific FDA/EU cosmetics concentration cap for this ingredient; practical limits are driven by sensorial properties, melting profile, and product type.