ghk-cu oral bioavailability study ghk cu New Biotinylated GHK and Related Copper(II) Complex: Antioxidant and Antiglycant GHK-Cu Tablets, 2mg | 60

It means it didn't work well enough as a standalone pharmaceutical drug

Since reactive oxygen species (ROS) primarily contribute to radiation-induced toxicity, antioxidant enzymes involved in ROS detoxification are expected to be influencing cellular radiosensitivity

doi:10.1002/14651858.CD009861.pub2 Back SE, McCauley JL, Korte KJ, et al

She cited the pair of studies from more than 30 years ago that found an association between the shot and cancer, though they were both called into question shortly after they were published

Nat Commun 15 , 2007 (2024)

Those on a Plant-Based or Nutrient-Restricted Diet Dietary glutathione from food sources is limited and poorly absorbed