This is because it is primarily studied for tissue remodelling and skin health rather than performance-enhancing effects like muscle growth or accelerated injury recovery
The MHRA treats it as an unlicensed substance, so it cannot legally be marketed or supplied for human use, although it is sold as a 'research chemical' not intended for human consumption
GHK-Cu Side Effects and NAD+ Side Effects: What to Expect Neither therapy has a concerning safety profile at clinical doses, but patients should understand what is normal and what warrants attention
Thomas A, Grgens C, Guddat S, Thieme D, Dellanna F, Schnzer W, Thevis M
Any change you observe typically reflects the combined program : caloric intake, protein adequacy, resistance training, and consistent follow-up