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Absolute contraindications: Wilson's disease or any other copper metabolism disorder, active cancer (because of GHK-Cu's pro-angiogenic activity), pregnancy, and breastfeeding

Second, GHK-Cu has a short half-life in tissue, less than one hour in serum according to pharmacokinetic studies

We also care for many individuals with digestive disorders like Crohns disease or celiac disease, which can make it challenging to get enough B12 from diet alone

Retrieved 27 November 2023

The neuroactive steroid allopregnanolone suppresses hypothalamic gonadotropin-releasing hormone release through a mechanism mediated by the gamma-aminobutyric acidA receptor