Diisopropyl Dimer Dilinoleate

Diisopropyl Dimer Dilinoleate is a high-molecular-weight fatty ester used primarily as an emollient/skin-conditioning agent (often several percent in leave-on products) and is generally non-reactive and well tolerated. It is not an acid, solvent, or preservative and has low likelihood of stinging or barrier disruption in clinical use, though very reactive eczema patients can still experience occasional intolerance to lipid esters. Given its typical use and low irritancy profile, it fits best as very gentle but not truly inert. Safety Notes: Diisopropyl Dimer Dilinoleate is used as a lightweight emollient/skin-conditioning oil mainly in leave-on products; at the low end (~0.1–1%) it appears in lotions/creams and makeup/primer-type emulsions as a slip agent and texture modifier. In anhydrous oils, balms, lip products, and silicone-free “dry oil” serums it is often a primary emollient, commonly 5–20%, with high-strength consumer formulations reaching ~25–35% when it serves as a major phase component for spreadability and gloss. It is uncommon in rinse-off cleansers at high levels due to cost/benefit and wash-off, so the upper end is primarily leave-on and anhydrous formats.