Absorption Comparison Table Potential Side Effects of High Doses While glutathione is naturally occurring and generally safe, pushing the limits with 2,000 mg or more daily can lead to unwanted reactions
Researchers working on collagen peptides for joint health face similar challenges in demonstrating that orally consumed peptides reach their intended tissue targets at biologically active concentrations, a parallel problem to the topical delivery question for GHK-Cu
Bipolar disorder: A landmark RCT (n=75) found that NAC (1,000 mg twice daily for 24 weeks) produced a significant improvement in depression scores (Montgomery-Asberg Depression Rating Scale) in bipolar disorder as an adjunct to usual treatment (Berk et al., Biol Psychiatry, 2008) [74]
Am J Health Promot
Key Takeaways GHK-Cu is a naturally occurring copper tripeptide found in face serums and facial creams, listed on labels as Copper Tripeptide-1
In two studies no detectable [100] or unchanged [101] activities of GSH peroxidase were found in spinal cord or cerebral cortex of ALS patients
