) Oxy-Gen Xtreme is designed to improve joint health and performance in horses. Each 6 oz. serving of Oxy-Gen Xtreme contains 7500 mg glucosamine HCl, 7500 mg glucosamine sulfate and 1240 mg MSM for prolonged absorption, promoting good joint health. Contains increased levels of original Oxy-Gen formula of Octacosanol, a compound primarily found in wheat germ that is used to improve respiratory function, which in turn increases stamina and helps build muscle mass. Oxy-Gen Xtreme pellets are hand screened to remove all of the dust so that it will not contribute to respiratory problems. Feed 6 oz. daily for 1-2 week loading period. Reduce to 3 oz. daily for maintenance or continue at 6 oz. daily for performance horses. Pellets.