ghk-cu negative feedback loops hormone suppression or may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes GHK-Cu and Reproductive Health: Mechanisms, – Frontiers | Exploring the beneficial

Advances in development of a contraceptive vaccine against hCG [PMID: 26160491] Laboratory literature summary: Advances in development of a contraceptive vaccine against hCG

In fact, much of the research supports using copper peptides in creams and serums directly on the skin, where they are known to be safe and effective

Note: over supplementation with folic acid can cause symptoms similar to the symptoms of B12 deficiency...and they can be very unpleasant..as I know to my cost (I inadvertently over supplemented when first diagnosed )

Faces Consent has a dedicated B12 product range for practitioners, worth bookmarking if you havent already

It eliminates the guesswork entirely