Collagen
Types & Sources
Collagen comes in multiple types: Type I (skin, bones, tendons), Type II (cartilage, joints), Type III (skin, blood vessels). Hydrolyzed collagen peptides absorb best. Bovine collagen (grass-fed) provides Types I & III. Marine collagen (wild-caught fish) offers Type I with smaller peptides for better absorption. Chicken collagen provides Type II for joint health. Take with Vitamin C for optimal synthesis.
21 products • sorted by purity: organic → natural → fermentation → synthetic
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Ranked by natural → synthetic, then by cleanest additives, then by lowest price per unit within the same quality tier.