Animalife Vetroflex Growing Liquid. Animalife Vetroflex Growing Liquid is an apple flavoured 100% natural supplement that supports healthy, strong bones and flexible joints by providing the nutrient requirements for younger horses. Vetroflex is 100% natural and contains a proprietary peptide blend of hydrolysed collagen that may help to support the structure of joints, bones, ligaments and connective tissue. Vetroflex offers rapid and maximal absorption to provide building blocks for the natural biosynthesis of joint cartilage. Read more… The antioxidants Vitamin E and Selenium help protect against free radicals and the Biotin, Methionine and Zinc promote healthy hooves. Vetroflex can begin to have effect in 2-4 weeks. Free from banned substances. Feeding Instructions Use a loading rate for up to 10 days followed by the maintenance rate. The daily rate is best split across two feeds. Maintenance Daily Rate Small Horse weighing less than 400kg â€" 20ml Medium Horse weighing 400-600kg â€" 30ml Large Horse weighing over 600kg â€" 50ml