The factor responsible turned out to be a small copper-binding tripeptide whose endogenous concentration declines with age from roughly 200 ng/mL at age 20 to 80 ng/mL at age 60. The 50-year research arc that followed makes GHK-Cu one of the most thoroughly characterized small peptides in the literature
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References: Sikiric P et al., Curr Pharm Des, 2018 24(18):20022030 Goldstein AL et al., Ann NY Acad Sci, 2007 1112:148154 Malinda KM et al., FASEB J, 1999 13(14):21062114 $118.00 Los productos llegarn en forma liofilizada (polvo) para mxima estabilidad
These custom formulations arent FDA approved and are not available in all states
For this reason, many individuals choose nutritional support to help maintain antioxidant activity and overall well-being.* The perlingual lozenge format provides a convenient method of use intended to supply glutathione directly, without requiring traditional swallowing