Types of Collagen: What’s the difference and which collagen do you need? by Organika Health
Regarding supplements, the most talked about types of collagen are type 1, 2, and 3.
Collagen supplements come in various forms of either hydrolyzed collagen (collagen peptides, collagen powder, collagen capsules or liquid form), gelatin or undenatured collagen. Hydrolyzed collagen peptides seem to be the easiest for the body to absorb and use.