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doi: 10.1152/ajpregu.00412.2005 75 RezaiePBitarafanVHorowitzMFeinle-BissetC
it is not the cost of treatment
GLP-1 receptor agonists pass the bloodbrain barrier and directly engage with GLP-1 receptors in essential appetite-regulating sites of the hypothalamus and brainstem (Trapp and Brierley 2022)
Downstream effects (IGF-1 elevation, body composition changes, recovery markers) take 24 weeks to manifest because IGF-1 synthesis lags behind GH pulses
However, for best results, we recommend using the full Hairgenetix routine: Copper Peptide Shampoo (cleanses and delivers GHK-Cu) Copper Peptide Conditioner (conditions and delivers additional GHK-Cu) Copper Peptide Serum (concentrated topical treatment) The combined approach ensures copper peptides are delivered at multiple points during your routine, maximising scalp exposure time
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