Animalife Vetroflex Orignal. Animalife Vetroflex Original is a 100% natural supplement that helps to support healthy, strong and flexible joints and bones whilst maintains suppleness and flexibility. Vetroflex is 100% natural and contains a proprietary peptide blend of hydrolysed collagen that may help to support healthy joints, bones, ligaments and connective tissues. Vetroflex offers rapid and maximal absorption to help provide building blocks for the natural biosynthesis of joint cartilage. The fine white powder can be mixed into your horses daily feed to help maintain suppleness and flexibility. Vetroflex does not contain glucosamine or chondroitin. Vetroflex can begin to have effect in 2-4 weeks. Free from banned substances.