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& Smith, S
In fact, there is no well-founded scientific evidence to prove its efficacy, and its skin-lightening claims currently hinge on individual case reports or anecdotal evidence
Hormones: Serum testosterone, triiodothyronine (T3), and thyroxine (T4)
GHK-Cu is a copper peptide complex used in controlled laboratory research models involving peptide-metal complexes, cell-culture workflows, and biochemical assay development
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