These days, it’s possible to do a whole lot more with your morning smoothie than get an added dose of protein. A dash of ashwagandha may lower cortisol levels, a pinch of reishi mushroom powder may boost immunity, a sprinkle of keratin may strengthen hair, a scoop of collagen powder may keep skin supple—the list goes on. Yes, these days, keeping your skin healthy comes from the inside out, and it’s more than just drinking a lot of water; what was once was topical is now edible. With keratin, collagen, and hyaluronic acid all available for consumption, you can’t help but wonder, does consuming all of these powders and potions really make a difference? Here, Dr. Whitney Bowe, dermatologist and author of The Beauty of Dirty Skin, breaks it down.