Vet-recommended natural alternative joint care solutions. Everyday NutriFlex Maintenance collagen for young and active dogs, cats and horses and NutriFlex Advanced triple-action joint support (joint, cartilage, bone) for senior pets and animals of all ages requiring intensive joint care. Scientifically formulated and brimming with naturally occurring joint nutrients, essential amino acids, vitamins and minerals, a daily serving is a great way to help your fur bestie enjoy daily vitality, mobility, agility and comfort — for longer — naturally