Dilutions WB: 1:500-1:2,000, ICC/IF: 1:50-1:200 Reactivity Human, Mouse, Rat Immunogen Recombinant fusion protein containing a sequence corresponding to amino acids 373-474 of human Glutathione Synthetase (Glutathione Synthetase (GSS)) (NP_000169.1)
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Bottom Line As of May 2026: BPC-157 is not formally approved for routine 503A compounding TB-500 is not formally approved for routine 503A compounding Injectable GHK-Cu remains in a gray regulatory area FDA advisory committee meetings are scheduled that could significantly influence future policy Political announcements do not equal FDA approval Many clinics and pharmacies are still operating in a legally uncertain environment This situation may continue to evolve quickly over the next 1218 months
Sepsis: A small RCT in patients with sepsis found that IV NAC (150 mg/kg bolus then 50 mg/kg over 4 hours) improved hepatosplanchnic perfusion, glutathione levels, and liver function markers
GHK-Cu, a variant of the peptide found in high concentrations in the brain, has been studied for its ability to counteract age-associated decline in neuron function
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