dpp4 and glp 1 together Inhibition of DPP-4. Food consumption boosts the release of GLP-1 Dipeptidyl Peptidase 4: DPP4 -

Regulatory Status GHK-Cu is not an FDA-approved drug

A TUE would be granted if the criteria outlined in the International Standard for Therapeutic Use Exemptions are met

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J Agric Food Chem (2009) 57:561522

There's no good comparative study showing that injected GHK-Cu produces better hair outcomes than well-formulated topical application