Protein has officially escaped the gym. After infiltrating cereal, coffee, ice cream, and even pancake mix, the nutrient is now making its way into skin care aisles, where yogurt and protein-infused creams promise everything from plumper skin to stronger collagen. While there is some evidence that ingredients like peptides can provide anti-aging benefits, the direct application of proteins derived from yogurt or collagen is largely ineffective when it comes to reducing wrinkles or anti-aging, experts say. Yet, the marketing of such products will have you believe otherwise. “In general, there’s a lot of protein, especially in Greek yogurt, specifically casein and whey—these are very large proteins,” Dr. Aegean H. Chan, a board-certified dermatologist, told Retail Brew. “Essentially, the mechanism is they’re just sitting on top of the skin, and they help hydrate the skin. They can help bind water so you’ll essentially temporarily moisturize the skin.” Comparing it to ingredients like hyaluronic acid, she added that these proteins “sit in the lines,” plumping them up while you’re using the product but there is no evidence behind claims of them “increasing production of elastic fibers or collagen.” Keep reading here.—JS | 
