I tweaked my shoulder lifting weights. I did not want to go to the Dr. The pain in my shoulder kept me from sleeping on my side and was very painful to dress. I ordered BPC-157 and began injections morning & evening. By the 2nd day I was pain free. By day 7 I began working out again with 5# weights with no pain. At 14 days I was back up to my full weight load, no pain and seems I recover faster now as weel. I'm very impressed with this product from this company.