Collagen supplements are a popular anti-aging tool. Before you take them, here's everything you should know about what collagen can do for your body.

Joint health: When combined with regular exercise, supplementing with collagen may help to stimulate the body’s connective tissues, which can modestly improve joint functionality, and reduce joint pain and stiffness. Bone health: Collagen has been shown to increase bone mineral density, supporting stronger bones and teeth.

I can’t be the only one confused by collagen in beauty products. It’s in creams, tablets, liquids and even powders, often at a high cost. But do any of them actually work? The short answer, from interviewing many experts and trying them myself,