Popsugar Beauty Beauty Reviews St. Moriz Self-Tanning Mousse Review This Self-Tanning Mousse Is the Key to My Natural-Looking Tan, and It Only Costs $13 November 17, 2019 by Haley Lyndes View On One Page Photo 6 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 One Day After Using St. Moriz Self-Tanning Mousse By the next day, my arm is visibly darker than it was the day before. Previous Next Start Slideshow Beauty ReviewsProduct ReviewsBeauty ShoppingUlta BeautyAmazonShoppingSelf-Tanner