Glutathione is found naturally in every cell and made within the body, specifically in the liver
The authors of an older 1993 overview published in the Journal of Physiology-Paris explain that after the gastric juice peptide BPC was isolated, a 15-amino-acid fragment believed to be essential for its functioning was identified this was BPC-157
Available from: Spiering BA, Kraemer WJ, Hatfield DL, Vingren JL, Fragala MS, Ho J-Y, Thomas GA, Hakkinen K, Volek JS
Studies show BPC-157 improves collagen organization, increases tensile strength, and accelerates healing in Achilles tendon models (PMID: 21030672)
Oral GLP-1 medications add convenience and skip the needle but typically require strict daily timing to maximize absorption, and real-world adherence varies from person to person