Can a daily jelly improve your skin and ease joints?
Symptom relief
Completed
This study tested whether a daily collagen jelly supplement could improve skin, hair, nail, and joint health. For 12 weeks, 40 female participants took the supplement and reported their experiences through online surveys and photos. Experts then reviewed the photos to look for ch…
Phase: NA • Sponsor: Nag Food Supplement Trading LLC • Aim: Symptom relief
Last updated Mar 30, 2026 14:29 UTC