Isopropyl Palmitate

Isopropyl palmitate is a fatty acid ester emollient commonly used at a few percent up to higher levels in creams and cosmetics; it is generally considered low on irritancy and is usually well-tolerated in patch testing. However, in eczema-prone or highly reactive skin, any lipid/solvent-like ester can occasionally cause stinging or barrier-related discomfort, especially in leave-on products used repeatedly. Given its overall favorable clinical tolerance but non-zero risk in compromised skin, it fits best as very gentle rather than inert. Safety Notes: In commercial products, isopropyl palmitate is often used at low levels (~0.1–2%) as an emollient/slip agent or solvent in lotions, sunscreens, makeup, and some rinse-off cleansers. Mid-range use (3–20%) is common in richer creams, balms, and makeup bases where it contributes significant emolliency and spread. The highest OTC levels (30–80%) are observed in anhydrous body oils, massage oils, and oil-based makeup removers where it can function as a primary carrier oil; such high levels are almost exclusively leave-on or anhydrous formats rather than surfactant-heavy rinse-off systems.

Suitability