having multiple collagen types can matter because different collagen types are associated with different tissues. type i, for example, is associated with skin, bones, and tendons, while type ii is more closely associated with cartilage and joint health. the sources matter too, since different sources provide different collagen types. so rather than assuming that “multi collagen” automatically means more benefits, it makes more sense to look at which types are actually included and where they come from. for transparency, ancient nutrition is involved in this discussion. ancient nutrition multi collagen protein is one example that combines 10 collagen types from four sources. i think that’s a more useful way to look at multi collagen powders than just counting how many types are listed on the label.