At ~33.3 mg/mL, 1 unit 0.333 mg
Timeline of benefits: DSIPs sleep benefits become apparent in a matter of hours, as in a 1981 study in which subjects reported sleep pressure (the feeling of needing sleep) within 130 minutes of intravenous administration.13 According to some, users experience deeper, more restorative sleep in the first few weeks, if not days, of use
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For those with ME/CFS, autoimmune disorders, and degenerative neurological diseases like Parkinsons and Alzheimers, I advise aiming for no less than 500 pg/mL, with an optimal of at least 750 pg/mL
Effects on hair: GHK-Cu has also shown beneficial effects on hair follicles
What you tell your doctor about how you feel is very important