100-Day Supply Horse XL Horse Supplements – Horse Care W/ 8 Essential Amino Acids to Promote Cellular Repair - No Soy or Sugar Coat Defense for Horses - Horse Joint Supplement & Horse Hoof SupplementsHIGH PERFORMANCE EQUINE NUTRITION Horse XL can help boost horse injury repair especially in working and performance horses. Horses of all ages and sizes, including pregnant mares, can use our horse joint supplement. VETERINARIAN APPROVED SUPPLEMENT Horse XL contains a proprietary blend of branched essential amino acids which are the building blocks of protein. Our horse hoof supplements are necessary for strength and muscle repair. PURE AMINO ACIDS