Citrus Nobilis Peel Oil
The essential oil coming from the peel of the mandarin orange or tangor. In general, the main component of citrus peel oils is limonene (77-86% for mandarin peel), a super common fragrant ingredient that makes everything smell nice (but counts as a frequent skin sensitizer). Apart from smelling nice (and thus being a popular natural fragrance alternative), Mandarin Orange Oil also has significant antioxidant properties that's comparable to synthetic antioxidant BHT or oil-soluble antioxidant big shot vitamin E.
On the con side, the fragrant components of citrus peels might irritate sensitive skin and citrus peels also contain the problematic compound called furanocoumarin that makes them (mildly) phototoxic. Orange mandarin peel contains less from it than some other citruses (like bergamot or lime), but still, be careful with it especially if it's in a product for daytime use.
Show me some proof
- Gursoy, Nevcihan, Bektas Tepe, and Munevver Sokmen. "Evaluation of the chemical composition and antioxidant activity of the peel oil of Citrus nobilis." International Journal of Food Properties 13.5 (2010): 983-991.
- Dugrand, Audray, et al. "Coumarin and furanocoumarin quantitation in citrus peel via ultraperformance liquid chromatography coupled with mass spectrometry (UPLC-MS)." Journal of agricultural and food chemistry 61.45 (2013): 10677-10684.