Life Kit: Health Do collagen supplements really work?
Oct 27, 2025
Maria Godoy, an NPR health correspondent, dives into the science of collagen supplements—debunking social media hype. She explains the origins of collagen and shares insights from randomized trials about skin benefits, but highlights issues with quality and funding. Joint health is discussed, revealing small, industry-funded studies with mixed results. While experts may not routinely recommend collagen, they suggest affordable, safe options could be beneficial. Maria also emphasizes proven skin care methods like sunscreen and healthy diets over supplements.
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Collagen's Role And Age Decline
- Collagen is a major structural protein that gives skin elasticity and keeps joints strong.
- The body’s collagen quantity and quality decline starting in our 20s, accelerated by sun and smoking.
Social Media Hype Drives Sales
- Collagen supplements are heavily marketed and popular on social media and in stores like Costco.
- Influencers often claim dramatic benefits, driving widespread consumer use.
Two Forms Of Collagen Supplements
- Collagen supplements come from animals and often appear as hydrolyzed peptides for easier absorption.
- Undenatured type II collagen targets joints differently by modulating immune signals to reduce inflammation.