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How GHK-Cu Compares to Retinoids, Vitamin C, and Other Anti-Aging Ingredients The 1998 head-to-head trial by Abdulghani measured procollagen synthesis side by side, and the copper-binding peptide outperformed both vitamin C and tretinoin
Pioglitazone for diabetes prevention in impaired glucose tolerance
Enzyme activities, especially myophosphorylase and phosphofructokinase, can be assessed histochemically
Many OTC products use vague marketing language like "GLP-1 support" or "peptide mimicking" to avoid legal liability
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