Nature Made Vitamin D3 1000 IU (25 mcg), Vitamin D Supplement for Bone, Teeth, Muscle and Immune Health Support, 300 Softgels, 300 Day Supply
$12.49 (as of March 14, 2026 23:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)What is Collagen?
Collagen is the main structural protein in skin, bones, and connective tissue.
Types of Collagen Supplements
Hydrolyzed collagen peptides are common and well absorbed.
Benefits and Evidence
Studies suggest collagen supports skin elasticity, joint health, and muscle mass preservation.
How to Use
Typical doses range from 2.5 to 15 grams daily; consistency is key.
