Collagen powders, gummies, and pills have become increasingly popular in recent years, often marketed with claims that they can reduce wrinkles, improve hair shine, and ease joint pain. These products are part of a growing wellness trend that promises a variety of health and beauty benefits. However, with so much information available, it can be difficult for consumers to determine which claims are backed by solid scientific evidence and which are simply marketing hype. Dr. Xand van Tulleken, a physician and writer, spent three years researching and writing Make Me Well: a quest to understand the confusing world of wellness, a book that explores the complexities of the wellness industry. In his chapter on collagen, he dives into what collagen actually does in the body, how it is naturally produced, and whether the benefits claimed by supplements are supported by research. He also addresses the challenges people face in distinguishing between genuine health advice and misleading claims. Collagen is a protein found in connective tissues throughout the body, including skin, bones, and cartilage. It plays a key role in maintaining skin elasticity and joint health. While some studies suggest that collagen supplements may have minor effects on skin and joint health, the evidence is often limited or inconclusive. Dr. van Tulleken highlights that collagen can also be obtained through a balanced diet, including foods like meat, fish, eggs, and certain vegetables. In his book, Dr. van Tulleken encourages readers to be skeptical of wellness claims and to seek out reliable information. He emphasizes the importance of critical thinking when evaluating health products and advice. For those interested in reading more, Make Me Well is available for purchase through the Guardian Bookshop.