Collagen is one of the most popular wellness supplements today, but with so much conflicting information online, it can be difficult to know what to believe. In this evidence-based guide, we answer the most common questions about collagen, including whether it works, how long it takes to see results, marine versus bovine collagen, skin health, menopause, healthy ageing and more. Whether you're new to collagen or looking to make a more informed choice, this FAQ will help you separate fact from fiction.