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While the cosmetic peptide GHK-Cu is commonly included in topical serums and approved skincare products, the injectable form is not FDA approved for skin or hair treatments

The textbook information on how a healthy body utilizes B12 from the liver is not applicable at best and not proven even for a healthy body

Comparison with Other Growth Hormone Secretagogues Reference: Title: Comparative Effects of Sermorelin and Hexarelin on Growth Hormone Secretion in Aging Authors: Ezio Ghigo, Enzo Arvat, Luca Gianotti, et al

[DOI] [PubMed] [Google Scholar] 44.Whelton P.K., Carey R.M., Aronow W.S., Casey D.E., Collins K.J., Dennison Himmelfarb C., DePalma S.M., Gidding S., Jamerson K.A., Jones D.W., et al