Hard Rock Health Smooth Skin Collagen Gummies are for when you want to tone your face if you are feeling your years or dealing with the pesky outdoors in the city life since one of the active ingredients helps revitalize skin from pollution. Collagen along with biotin are great to protect against acne, help against hair loss, and brittle nails. With its mostly natural components, it's also good to take when you are working out and need to watch that figure or just trying to stay healthy in general.