Reduced collagen in the skin results in a weak dermo-epidermal junction, causing sagging skin and aging. Farm Stay Collagen & Hyaluronic acid All in One Ampoule is a functional ampoule care line whose main ingredient is collagen, especially marine collagen that is remarkably similar to skin structure. Marine collagen and hyaluronic acid play a role in tightening and moisturizing your skin, which prevents the skin from being dry and keeps it moisturized. And also vitamin scrub, one of the ingredients, will make your skin transparent and healthy.