Off phase: 30 days pause
For example, the Scottish Good Practice Statement (SGPS) is the official guidance on the diagnosis and management of ME/CFS in Scotland
[DOI] [PubMed] [Google Scholar] [19].De Caro C, Leo A, Citraro R, De Sarro C, Russo R, Calignano A, et al
While this test does not predict GHK-Cu response directly, understanding these pathways can support a more informed discussion with your provider about peptide-based approaches
However, this limitation does not fully prevent its clinical utility as a glutathione precursor: once deacetylated cysteine reaches target cells, intracellular synthesis proceeds effectively
It should not be described as an established circulating human pineal hormone