In addition, B12 supplements may reduce the risk of developing dementia and Alzheimers disease, two conditions that are associated with cognitive decline
For athletes and body-recomp goals, the signal is promising , but evidence-based protocols require human trials to confirm efficacy, safety, and optimal integration with training/nutrition
What the evidence doesn't yet include is a large, independent, randomized controlled trial in humans measuring hair-density outcomes specifically attributable to AHK-Cu
Research on the closely related GHK-Cu demonstrates improved collagen production in treated skin compared to various controls including vitamin C cream and retinoic acid
Evening use may be more likely to disrupt sleep, but this has not been tested in a controlled human study
Because it modulates a methylation and NAD+ pathway, interactions with other metabolically active compounds cannot be ruled out and have not been characterised in humans