Coty Patents Kit Of Sun Products U.S. Patent No. 7,892,523 B2 Coty B.V., Haarlem, The Netherlands, has been granted a U.S. patent for treating the skin with a kit of sun products. Prior to intensive exposure to UV radiation, a pre-sun product, which is the first part of the kit, is applied to the skin one to several times a day for 2-7 days. This product is comprised of a radical scavenger, caffeine, a complex with amino acid salts consisting of sorbitol, arginine-HCl, ornithine-HCl, tyro...