Carapa Guaianensis Seed Oil

Carapa guaianensis (andiroba) seed oil is an emollient lipid used typically at a few percent up to higher levels in balms, and like other botanical oils it is generally well-tolerated but not inert. Clinical experience and patch-testing literature for plant oils supports occasional irritant or allergic contact dermatitis in reactive/eczema-prone patients (from minor constituents/oxidation products), so I score it as mild rather than “gentle” for compromised skin. Safety Notes: Carapa guianensis (andiroba) seed oil is used at very low levels (~0.05–0.5%) as a supportive emollient in emulsions (lotions/creams) or as part of a botanical lipid blend where it is not a key claim ingredient. In mainstream leave-on body butters, balms, and facial oils it is commonly formulated around 1–20% depending on the oil phase and sensory targets, while consumer-available single-ingredient oils and anhydrous blends marketed as “100% andiroba oil” reach 100% (neat oil); rinse-off products typically sit at the lower end due to cost and deposition limits.