Studies indicate that it affects neurotransmitters such as serotonin, dopamine, and norepinephrine, all of which play a role in supporting sleep, promoting mood enhancement, and reducing stress
2012;302:H24-37
Sprays are the lowest-friction entry point no reconstitution, no needles, metered fill per actuation
Of the seven peptides being reviewed, experts said none should be made available for compounding
A 2026 UK review of the April 2025 University of Oklahoma Nutrients study showing non-anaemic women with "below expected" iron thought more slowly, iron deficiency without anaemia, the irondopamine (tyrosine hydroxylase) and myelin mechanism, hippocampal BDNF downregulation, NICE/NHS ferritin thresholds, oral and IV iron and why checking ferritin and finding the cause comes first, not a peptide Read the full review Nutritional & Metabolic Neuroscience 7 June 2026 Dihexa for Vitamin B12 Deficiency Brain Fog: The "Normal B12" Study, Homocysteine & the 2026 UK Review Can Dihexa help vitamin B12 deficiency brain fog
People experiencing stress-related shedding or telogen effluvium may find peptide shampoos particularly helpful