Can I use the Collagen Performance Boost if I follow a vegan or vegetarian diet? Matt Mazzino, RD, LD June 28, 2021 15:56 The Collagen Performance Boost is not vegan or vegetarian friendly. Related articles I thought Collagen was for skin health, how will this benefit my sports performance? Can I add collagen to my protein blend? Should I consume creatine on the days I don’t exercise? Is creatine safe? What is creatine? Comments 0 comments Please sign in to leave a comment.