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Evidence on the benefits of systemic therapy is limited for several reasons: reliance on mostly small and predominantly female samples, short study durations, methodologic heterogeneity, and a lack of consensus on which outcome measures are clinically relevant

Funding sources were as follows: DTR: R01GM115424 (NIH)

[Google Scholar] Jiang BG, Jia N, Jiang JF, Zheng YC, Chu YL, Jiang RR, Wang YW, Liu HB, Wei R, Zhang WH, et al

Collagen Production Several studies referenced by the review article showed GHK-Cu increased collagen synthesis and glycosaminoglycan production

Ror2 receptor requires tyrosine kinase activity to mediate Wnt5A signaling

Even if you can appropriately figure out how to use them, you still cant ensure quality in a completely unregulated environment of research chemicals