Pulled my hamstring badly during a sprint workout -- grade 2 strain confirmed by ultrasound (partial thickness tear of the biceps femoris). My sports medicine doc said 4-8 weeks recovery minimum, likely closer to 8 given the ultrasound findings.
I had BPC-157 on hand (I keep a few vials in the fridge since my first experience with it for an Achilles tendon issue a year ago). Started 250 mcg subcutaneous near the injury site twice daily, beginning the day after the injury.
Day 1-3: Standard acute injury phase. Bruising, swelling, pain with any hip flexion or knee extension. Used BPC-157 alongside standard RICE protocol.
Day 4-7: Swelling resolved faster than I expected. Pain with passive stretching reduced from "sharp and limiting" to "uncomfortable but tolerable." I could walk normally by day 5.
Week 2: This is where it got interesting. I was doing gentle hamstring stretches and isometric holds that my PT had prescribed, and the tissue felt remarkably better than expected at this stage. My PT was surprised -- she had expected me to still be in the acute protection phase at day 10 and I was already doing pain-free isometric contractions.
Week 3: Cleared for light jogging by my PT. Jogged 2 miles on a treadmill with no pain. This was at the point where the original prognosis said I would be doing gentle walking.
Week 4: Back to full sprint training with a gradual volume ramp-up.
Follow-up ultrasound at week 6 showed complete healing of the partial tear. Sports med doc said the imaging looked like a 3-4 month post-injury scan, not a 6-week one.
This was my most dramatic BPC-157 experience. The Achilles issue last year improved significantly too, but over a longer timeline. With an acute muscle injury like this, where you have a clear before and a clear expected timeline, the accelerated healing was impossible to miss.