eCosmetics is an authorized retailer of Osier.A daily dose of gentle yet powerful rejuvenation with our Brighter Days Vitamin C Serum. Designed to revitalize skin and restore its natural glow. This advanced serum combines 3% Vitamin C and 10% Phyto-squalene derived from sugar cane to naturally brighten and create a moisturizing barrier, that work to brighten, hydrate and protect the skin from harmful free radicals.