No, there is no such thing as vegan collagen. Collagen is the structural protein found in all animals. In plants this role is filled by cellulose, which is indigestible to us humans. What is sold as “vegan collagen” is a mix of amino acids similar to what is found in animal collagen. Similar but not the same: for example, plant collagen lacks hydroxyproline, one of the most+ abundant amino acids in plant collagen The amino acids used to create “vegan collagen” can be extracted from plants or synthesized in the lab.