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Dysfunction of soluble guanylyl cyclase in aorta and kidney of Goto-Kakizaki rats: influence of age and diabetic state

Topical Copper Peptides Affects surface layers of skin only Limited penetration through skin barrier Localized effect only where applied Good for maintenance, not transformation No systemic anti-aging benefit Available over-the-counter Injectable GHK-Cu Full systemic delivery to all tissues Reaches dermis, follicles, and healing sites Whole-body anti-aging effect More potent collagen stimulation Gene expression modulation (4,000+ genes) Requires medical prescription They are not mutually exclusive

doi: 10.1016/j.mam.2007.01.002

For example, a 5 mg vial at 1 mg/mL needs 5 mL

Neiger, Mayers and Zandberg, 2011

Practically insoluble in water