Popsugar Living Amazon Prime Day Best Amazon Prime Day Deals Under $50 2019 The 33 Best Deals From Amazon Prime Day For Under $50 15 July 2019 by Macy Cate Williams View On One Page Photo 20 of 33 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 20 TruSkin Vitamin C Serum TruSkin Vitamin C Serum ($20, originally $36) TruSkin Vitamin C Serum $20 from amazon.com Buy Now Previous Next Start Slideshow ShoppingAmazon Prime DaySale ShoppingAmazon PrimeShoppableAmazon