Dicaprylyl Ether

Dicaprylyl ether is a lightweight emollient/solvent used typically in the ~1–20% range to improve slip and reduce greasiness; as a nonpolar, nonreactive ether it is not pH-dependent and is generally low on stinging potential. Clinical and patch-test experience places it among well-tolerated cosmetic emollients, with irritation uncommon but not impossible in severely compromised barriers (e.g., active eczema), so it is not truly inert. Considering routine layering in sensitive-skin regimens, a "very gentle" score best reflects its overall safety while acknowledging rare reactivity. Safety Notes: Dicaprylyl Ether is commonly used as a lightweight emollient/solvent and sensory modifier, and appears at low levels (~0.1–1%) in emulsions (lotions, sunscreens, serums) where it mainly improves slip and reduces greasiness. In anhydrous leave-on products (face oils, sunscreen oils, makeup primers, and silicone-free “dry oil” formats) it can function as a primary emollient/dispersion medium and is observed in the ~10–40% range, with the upper end representing high-slip specialty consumer formulations rather than typical creams. Rinse-off products generally sit toward the low-to-mid end because it is not required at high levels for performance and can impact clarity/viscosity.