Due to these benefits, studies show that GHK-Cu is relevant in treating alopecia because of chronic inflammation, small follicles, impaired signaling, and disruption of the normal hair cycle
While effective in supplementing B12 levels, they are not derived from natural food sources and are formulated to mimic the active forms of B12 found in the body
L., Muller, D., Alonso, C
After initial repletion, a maintenance dose is given, often 1,000 mcg intramuscularly every month or every 2 to 3 months, to prevent recurrence of deficiency
These limitations do not invalidate preclinical findings but emphasize the need for human clinical trials with appropriate sample sizes, standardized protocols, and validated outcome measures before establishing clinical efficacy in human patients
Each has different weight, and they should not be blended into a single confident conclusion