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Reduced saccharine test time (STT) in the NAC group indicates that NAC, not placebo, improves mucociliary clearance activity (124)

Cysteine is most commonly the amino acid the body doesnt have enough of, so a cysteine supplement may be just as helpful as a glutathione supplement in some cases

It stimulates the production of collagen types I, III and IV, elastin, proteoglycans and glycosaminoglycans in the dermis

Growth hormone receptor expression in tendons: Preclinical work has shown BPC-157 increases GH receptor expression in tendon fibroblasts, which may explain its strong effect on tendon-to-bone healing

doi: 10.3109/09513590.2011.650660

It's used in research and wellness settings for faster healing, skin rejuvenation, and recovery from musculoskeletal injuries