While you can use sterile water for a single, immediate use where the entire vial is consumed, we strongly advise against it for multi-dose protocols
Most people should plan on weeks to a few months of consistent use before judging GHK-Cu, since it works by gradually rebuilding tissue rather than producing an instant change
See Pros and Cons of Using PRP for Tendon Injuries Prolotherapy This treatment involves administering small amounts of a medicated solution, such as dextrose or saline, into the rotator cuff tissue(s) over a period of several weeks with the goal of inducing tissue regeneration, promoting healing, and reducing pain
Reconstitution with acidic solvents risks accelerated deamidation
Elevated intracellular GSH (or precursors like NAC) in autoimmune conditions has been shown to downregulate the activity of NF-B which mediates pro-inflammatory gene transcription (Limongi et al., 2019)
This happens through its ability to inhibit melanin production, which can gradually reduce pigmentation, tanning, and uneven skin tone