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At 500 mcg per dose, you get 30 doses from a single vial, which is outstanding economy

D., Cai, X., Ma, C., Wang, Y., Dai, A., Zhou, Y., Sun, W., Zhao, F., Zhao, S., Jiang, H., Jiang, Y., Yang, D., Eric Xu, H.,

Furthermore, GHK-Cu helps restore the natural skin barrier, clarity, and attractiveness by promoting the regeneration of healthy skin cells and decreasing dead skin cells (1)

Originally identified by Loren Pickart in human plasma, GHK-Cu has been the subject of extensive cellular biology and biochemical research literature for over five decades, with research contexts examining tissue biology, cellular signaling pathways, copper-binding peptide chemistry, and extracellular matrix research