For a standard protocol using 150mcg five times weekly, a 5mg vial reconstituted in 2.5ml provides approximately 66 doses, more than enough to complete within the recommended timeframe
It is not a simple collagen booster
In double-blind, placebo-controlled trials, daily application of GHK-Cu cream at 3% concentration for 12 weeks produced a 70% increase in skin collagen thickness as measured by ultrasound imaging, a 40% increase in skin elasticity, and visible reduction in fine lines and wrinkles
Research has confirmed no significant effects on serum IGF-1 levels, no negative effect on carbohydrate metabolism, and no immunogenicity with no anti-AOD-9604 antibodies detected in any participants
At this concentration, a 0.25mg dose equals about 7.5 units on a U-100 insulin syringe