One thing practitioners will consistently mention is GHK-Cu can lead to a stinging sensation upon injection
It is not intended for storage or multiple withdrawals
If not neutralized by antioxidants, ROS may damage mitochondria over time, causing them to function less efficiently and to generate more damaging ROS in a self-perpetuating cycle
Hawrelak JA, Wohlmuth H, Pattinson M, Myers SP, Goldenberg JZ, Harnett J, et al
Otsuka, M., Kato, N., Ichimura, T., Abe, S., Tanaka, Y., Taniguchi, H., Hoshida, Y., Moriyama, M., Wang, Y., Shao, R., Narayan, D., Muroyama, R., Kanai, F., Kawabe, T., Isobe, T., & Omata, M
Vitamin B12 deficiency can lead to serious neurological issues including memory loss, fatigue, and nerve dysfunction