Biotherm wants to promote their skincare products by having women pledge to go without makeup one day a week. They will use an interactive mobile site to allow women to band together in their pledge, check-in when makeup-free, compete for badges celebrating their skin attributes, and get advice from skin experts. By gamifying the pledge and encouraging social support from other women, Biotherm hopes to get new customers interested in caring for their skin without makeup and trying Biotherm's products.