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111Skin is an award-winning skincare range developed by best-in-class plastic surgeon Dr Yannis Alexandrides, alongside a team of space scientists. Dr Yannis Alexandrides is the MD of 111 Harley Street London, and his skincare formulas incorporate cutting-edge skincare research with the patented NAC Y2 antioxidant trio. This unique formula is used by astronauts to delay the visible signs of skin ageing, and to stimulate the body’s repair system. The 111Skin Y Theorem Repair Serum is a brand bestseller, as it offers the highest concentration of the NAC Y2 antioxidant trio, alongside essential amino acids. See also: 111SKIN gift sets.