Unlike GHK-Cu, which occurs naturally in the human body and has broad skin research behind it, AHK-Cu was designed with hair biology in mind - particularly its potential to interact with the Wnt/-catenin signalling pathway involved in hair follicle cycling
A 2026 UK review of the 2024 Gut Feelings probiotic-cognition RCT (weak working-memory benefit), the long-COVID Lactobacillus paracasei PS23 brain-fog trial (NCT06348212), the gut BDNF link, NICE CG61 and the low-FODMAP/probiotic evidence, plus HGFs dual role in gut-lining repair and brain synaptogenesis and why diagnosing and treating the gut comes first, not a peptide Read the full review Autoimmune & Gut-Brain Neuroscience 5 June 2026 Dihexa for Coeliac Disease & Gluten Brain Fog: The 2026 UK Review Can Dihexa help coeliac disease or gluten brain fog
Can taking the wrong probiotic actually cause small intestinal bacterial overgrowth to worsen
Additionally, bacillus was negatively correlated with dopamine, pyrinuron, and bhos#36, whereas it exhibited a positive correlation with gluten exorphin C