The research was started in 1995, the formulations became available in 1999. Our original research focused on creating a formulation that could support brain health in a way that was reproducible. For over 20 years, providers in the United States (and around the world) have used our comprehensively researched formulations to support their patients’ brain, gut, and overall health.
CHK Nutrition’s amino acid products support normal brain, gut and overall health by providing balanced amino acid nutrients which support serotonin, dopamine, norepinephrine and epinephrine.





