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What Factors Determine a Peptide's Half-Life

10.1158/1055-9965.EPI-13-0733 33 FracanzaniA.ConteD.FraquelliM.TaioliE.MattioliM.LoscoA.et al

Selenium glycinate supplementation increases blood glutathione peroxidase activities and decreases prostate-specific antigen readings in middle-aged US men

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GHK-Cu doesn't play well with strong acids like L-ascorbic acid (the most common form of Vitamin C) or alpha-hydroxy acids (AHAs), as they can break the peptide bond and make it useless

The challenge is knowing which signals matter, and which ones dont