CJC-1295 (Mod GRF 1-29), in extending GHRH activity, may amplify signals linked to muscle tissue studies
Nature 469 , 498503 (2011)
It gets into cells quickly (around 10 minutes), and researchers believe it has its own transporter
Another study in healthy older adults showed supplementation with glyNAC, which increases glutathione levels, led to improvements in strength, gait speed, and body composition.
Furthermore, one study reveals that IGF-1-specific muscle expression counteracts muscle wasting caused by angiotensin II [3]
NAC supplements are a valid approach, but they work indirectly