why does ghk cu hurt after injecting GHK-CU this audio? Because feels like a constant wasp sting so it takes me about 15 seconds to pin .2 mL. I dread this shot every night for that reason Mitigating GHK-Cu Injection Pain: Tips
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10.1016/j.cgh.2015.10.022 108 WatanabeT.NishioH.TanigawaT.YamagamiH.OkazakiH.WatanabeK.et al (2009)
After being washed with phosphate buffer solution (PBS), the cell images were immediately detected by a Zeiss LSM 570 laser scanning confocal microscope (Carl Zeiss, Germany)

And lastly, alcohol abuse may also impair B12 levels and metabolism (Temova Rakua et al., 2022)

Self-reported categorical exposures (workload, thermal comfort, exercise, feeling) cannot be quantitatively confirmed
