glutathione muscle growth does help with recovery Role of glutamine, as free or dipeptide form, on from resistance training: a review study 1 liter glutathione serum muscle

In fibroblast cell studies, GHK-Cu stimulated collagen synthesis at nanomolar concentrations (10 -9 M), which matters because it means effective activity at very low doses in well-formulated serums

Pirazzi, C

E., Gunes, N., Demirci, M., Erdem-Ozdamar, S., & Tan, E

In general, GHK-Cu has demonstrated good tolerability in research settings, particularly in topical applications

It just goes to show that the 'B12 deficiency is unlikely in someone so young' is probably right most of the time, but not always

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