chondroitin sulfate strengthens joints,ligaments,and tendons.glucosamine sulfate is important for bones,tendons,ligaments,cartilage and joint fluid.The ammino acids L-leucine,L-isoleucine,ans L-valine are chain branched amino acids that promote healing of bones,skin,and muscles.For bruising,vitC deficient people bruise more easily,shredded raw potato directly to the injury will reducediscoloration and soreness.Alfalfa supplies vitamins and mineral and vit K for healing.