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Citrus Unshiu Peel Extract

Also-called-like-this: Satsuma Mandarin, Satsuma Orange
What-it-does: skin brightening, antioxidant

Details

Out of the more than 900 Citrus species known today, Citrus Unshiu is a seedless, easy to peel tangerine coming from the Japanese town Satsuma. The peel extract used in cosmetics is mainly created from the "press-cake", the by-product of the juice industry and as it turns out, what's waste to one industry is a useful ingredient to another. 

In cosmetics, the main thing of the Citrus Unshiu Peel Extract is being a skin-brightening or whitening agent. In-vitro (made in test tubes) and animal studies both show promising results for inhibiting tyrosinase, the famous enzyme regulating melanin production. It also contains antioxidant components such as carotenoids, coumarins,  limonoids, and flavonoids that might be useful for the skin to protect itself from UV caused damages. 

The downside of citrus peel extracts (that prevents our goodie rating) is that they usually contain some amount of essential oil components, though the amount is probably way too low to worry about unless you're super-duper sensitive. 

Show me some proof

  • Kim, Sang-Suk, et al. "Citrus peel wastes as functional materials for cosmeceuticals." Journal of Applied Biological Chemistry 51.1 (2008): 7-12.
  • Kim, Sang Suk, et al. "Down-regulation of tyrosinase, TRP-1, TRP-2 and MITF expressions by citrus press-cakes in murine B16 F10 melanoma." Asian Pacific journal of tropical biomedicine 3.8 (2013): 617-622.
  • ORYZA OIL & FAT CHEMICAL CO., LTD. , CITRUS UNSHIU EXTRACT: Health Ingredient for whitening and aesthetic, Ingredient for cosmetics

Products with Citrus Unshiu Peel Extract

Dr HEDISON Retinol Eye Wrinkle Corrector - Frudia Citrus Brightening Cream Frudia Citrus Brightening Cream Frudia Citrus Brightening Serum Frudia Citrus Brightening Toner Image Iluma Intense Lightening Serum Image Skincare Iluma Intense Brightening Serum Jurlique Herbal Recovery Signature Mist Karine Joncas Dark Spot Corrector Kolagra Skin Serum With Gold Particles Secret Nature Mandarine Honey Brightening Moisturizing Cream Secret Nature Mandarine Honey Brightening Moisturizing Serum Secret Nature Mandarine Honey Moisturizing Toner Zax's Original Dark Spot Cream innisfree Brightening & Pore-Caring Cream innisfree Brightening & Pore-Caring Serum innisfree Jeju Tangerine Peel Extract Toner Drakon Whitening Facial Wash Jurlique Herbal Recovery Signature Eye Serum Jurlique Herbal Recovery Signature Serum Jurlique Purely White Skin Brightening Essence Tula Illuminating Face Serum innisfree Brightening & Pore-Caring Eye Cream innisfree Brightening & Pore-Caring Sleeping Mask innisfree True Care Cica AA Treatment Cream innisfree Whitening Pore Sleeping Pack Ex Farmona Professional Revolu C White Restructuring Cream Jurlique Herbal Recovery Signature Eye Cream Jurlique Herbal Recovery Signature Moisturising Cream Miskin Gold Diamond Hydro Gel Eye Patch Honey Green Tea Secret Key Gold Premium First Eye Patch Secret Key Secret Key Gold Racoony Hydrogel Eye & Spot Patch Too Cool For School Perfect Day Makeup Fixer heynature Intense Serum 8 innisfree Aloe Revital Skin Mist innisfree Aloe Revital Soothing Gel innisfree Intensive Long-lasting Sunscreen Ex SPF50+ Pa++++ BONAJOUR Green Tea Essential Dr v Lip X Mask Jurlique Herbal Recovery Signature Moisturising Lotion Secret Key Gold Racoony Hydrogel Eye & Spot Patch THE LAB by blanc doux Green Flavonoid™ 2.5 Pad Truecare Panthenol 10 Moisture Skin innisfree My Essential Body Intensive Flower Body Cleanser innisfree Olive Real Oil Mist Alchimie Forever Pigment Perfecting Serum BONAJOUR Centella Repair Skin Toner Borghese Fango Brillante Brightening Mud Mask FQM Melora Dermovance Calm Image Skincare Iluma® Intense Brightening Serum