A concentrated nutritional hoof supplement that helps improve hoof growth & hardness and support hair & skin health in horsesin-stride is a concentrated nutritional hoof supplement that helps improve hoof growth & hardness and support hair & skin health in horses. in-stride can also be used in conjunction with in-fusion msm, in-fusion ha, in-sideout, in-force & in-sandout. in-stride has been developed by a equine specialist vet for Evolution Animal Care. It is ..