One injection may provide several weeks and months worth of benefit without the need to take a daily vitamin B12 tablet, however, this varies amongst people in different circumstances
It can be combined with other factors geared towards anti-aging, such as collagen, DNA repair micronutrient formulations, to increase vitality, boost the immune system, and remove toxins from the organs, thus improving cellular functions, regeneration, energy production, and ultimately assisting in reversing the effects of aging
Real change happens when you support your skin from inside as well as outside
Any investigation of GHK-Cu in male contexts would need to account for these hormonal factors, though direct interaction between GHK-Cu and testosterone remains an understudied area