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Reported Benefits of BPC-157: Accelerated Healing: Studies suggest that BPC-157 may accelerate healing of wounds, muscles, tendons, and nerves

Walther, T

People who suffer from anxiety, sugar or alcohol cravings, constipation or diarrhea, a poor immune system, low muscle mass, poor wound healing or slow recovery after workouts, may benefit from glutamine supplementation

Research has explored its role in tissue repair signaling, including tendon and ligament healing and gut lining integrity

Thats where Vitamin B12 injections come in

It may however take a few days or weeks (especially if addressing a B12 deficiency)