Hand-whipped raw Shea Butter in our Ryz Rémi Day Balm Concentrate
Antioxidants work by preventing unstable molecules from damaging skin cells.
The Shea tree Vitellaria paradoxa is slow-growing and long lived.
Shea grows wild in the dry savannah regions of Africa and endures extreme heat, drought and wind.
In response to the harsh environment, Shea becomes stronger and makes antioxidants to help protect itself against damage.
Shea butter is rich in a variety of antioxidants, including vitamin E, triterpenoids and polyphenols that help protect skin against sun damage and premature aging (1-3).
Shea Butter can penetrate deep into the skin layers, leaving skin feeling soft, smooth and supple. Shea butter has been shown to improve dry skin in children with eczema (4).
Shea Butter re-hydrates dry, chapped skin and diminishes the appearance of fine lines around your eyes, mouth and forehead.
Shea Butter contains linoleic acid (5), the essential n-6 fatty acid found naturally in the skin barrier (6). Linoleic acid is the natural precursor for ceramide, a bioactive lipid that plays a role in maintaining skin barrier to protect against water loss (6).
Shea butter has traditionally been used to calm irritated skin, and has been shown to improve symptoms of eczema (4). Shea butter contains active compounds, including triterpene cinnamates and acetates with anti-inflammatory activity (7).
Shea butter extract has been shown to significantly reduce the levels of LPS-induced nitric oxide, tumor necrosis factor-α (TNF-α), interleukins, 1β (IL-1β), and -12 (IL-12) in cell culture experiments (8).
Shea butter extract is thought to calm inflammation by targeting iNOS and COX-2 signalling pathways (8).
1) Maranz S, Wiesman Z. Influence of climate on the tocopherol content of shea butter. J Agric Food Chem. 2004 May 19;52(10):2934-7.
2) Akihisa T, Kojima N, Katoh N, Ichimura Y, Suzuki H, Fukatsu M, Maranz S, Masters ET. Triterpene alcohol and fatty acid composition of shea nuts from seven African countries. J Oleo Sci. 2010;59(7):351-60.
3) Maranz S, Wiesman Z, Garti N. Phenolic constituents of shea (Vitellaria paradoxa) kernels. J Agric Food Chem. 2003;51(21):6268-73.
4) Gelmetti C, Boralevi F, Seité S, Grimalt R, Humbert P, Luger T, Stalder JF, Taïeb A, Tennstedt D, Garcia Diaz R, Rougier A. Quality of Life of Parents Living with a Child Suffering from Atopic Dermatitis Before and After a 3-Month Treatment with an Emollient. Pediatric Dermatology Vol. 29 No. 6 714–718, 2012
5) Honfo FG, Akissoe N, Linnemann AR, Soumanou M, Van Boekel MA. Nutritional composition of shea products and chemical properties of shea butter: a review. Crit Rev Food Sci Nutr. 2014;54(5):673-86.
6) McCusker MM, Grant-Kels JM. Healing fats of the skin: the structural and immunologic roles of the omega-6 and omega-3 fatty acids. Clin Dermatol. 2010 Jul-Aug;28(4):440-51.
7) Akihisa T, Kojima N, Kikuchi T, Yasukawa K, Tokuda H, T Masters E, Manosroi A, Manosroi J. Anti-inflammatory and chemopreventive effects of triterpene cinnamates and acetates from shea fat. Journal of Oleo Science. 2010;59(6):273–80.
8) Verma N, Chakrabarti R, Das RH, Gautam HK. Anti-inflammatory effects of shea butter through inhibition of iNOS, COX-2, and cytokines via the Nf-κB pathway in LPS-activated J774 macrophage cells. J Complement Integr Med. 2012; 9:Article 4.
9) Nakatsuji T, Kao MC, Zhang L, Zouboulis CC, Gallo RL, Huang CM. Sebum free fatty acids enhance the innate immune defense of human sebocytes by upregulating beta-defensin-2 expression. J Invest Dermatol. 2010 Apr;130(4):985-94.
10) Kwon HH, Yoon JY, Park SY, Min S, Kim YI, Park JY, Lee YS, Thiboutot DM, Suh DH. Activity-guided purification identifies lupeol, a pentacyclic triterpene, as a therapeutic agent multiple pathogenic factors of acne. J Invest Dermatol. 2015 Jun;135(6):1491-500.
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