Five Star Superflex Senior is a unique formulation providing our highest specification of the key joint support nutrients for horses, working in synergy with rich natural sources of Omega 3 fatty acids and naturally sourced antioxidants to support healthy, flexible joints in hard working horses and older horses and ponies still leading active lives. - Optimum levels of glucosamine, MSM & antioxidants - Plus omega 3 Oils - Plus chia seeds - Only 93p per day at maintenance