We all want to keep our muscles full and young looking, but unfortunately there comes an age where no mater what you do your muscles begin to age. Despite AAS and/or HGH use, muscle quality will still continue to decline as natural aging begins to take effect. You know the look...you see it even in professional bodybuilders near the end of their career. Their muscles begin to droop more, look softer, less full, and just less appealing overall despite all the dieting, training and PEDs.
Well there's one "PED" that just may be the game changer for preventing this muscle aging. OXYTOCIN. Oxytocin has been shown to REVERSE aging in the muscle cells of elderly people bringing them back to their youthful state.
"Inhibition of oxytocin signaling in young animals reduces muscle regeneration, whereas systemic administration of oxytocin rapidly improves muscle regeneration by enhancing aged muscle stem cell activation/proliferation through activation of the MAPK/ERK signalling pathway."(https://pubmed.ncbi.nlm.nih.gov/24915299/)
Read more on Oxytocin's effects on muscle here:
Oxytocin is an age-specific circulating hormone that is necessary for muscle maintenance and regeneration - PubMed
Oxytocin stimulates glucose uptake in skeletal muscle cells through the calcium-CaMKK-AMPK pathway - PubMed
Neurohypophyseal hormones and skeletal muscle: a tale of two faces