For ligament work, the canonical reference is Cerovecki and colleagues 2010 study of medial collateral ligament transection in rats, in which intraperitoneal, oral (drinking water), and topical BPC-157 administration each produced consistent improvements in functional, biomechanical, macroscopic, and histological healing endpoints over a 90-day window (Cerovecki et al., 2010)
Frequently Asked Questions / Reference T419: Total Glutathione Quantification Kit Revised Nov., 28, 2023
It is also used to try and regrow hair
Glutathione is found in raw or very rare meat, unpasteurised milk & dairy products, fresh fruit and vegetables, especially asparagus, avocado and spinach
Effects of GSH on Alcohol Metabolism and Hangover Improvement in Humans: A Randomised Double-Blind Placebo-Controlled Crossover Clinical Trial [online]