Designed to perform at the optimal UV Wavelength. PHOTO-SYNC™ utilizes a proprietary natural blend of Tyrosine, Arginine & Ornithine to effectively stimulate melanin production and accelerate the tanning process. Experience the anti-aging/anti-cellulite benefits of Whey Protein, Hydrolyzed Silk & moisturizing Ceramides. With Sky™ there's no limit on how dark you can get.