I have an 11 year old Lab that was developing arthritis in her hips. Vet said she will probably always be on meds from now on. My thought was to give this a 30 trial period if it works great if not back to the prescription meds. After 1 week on the medium dose for a 100 lb. dog she has already shown improvements! Can’t wait to see what the next couple of weeks will bring. Thumbs up on this product and Hope Botanicals. Looking forward to trying the horse products.