At their core, peptides are short chains of amino acidsthe building blocks of protein
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Science 324 , 654657 (2009)
In fact, studies show GHK-Cu improved collagen production in 70% of female participants, outperforming both vitamin C (50%) and retinoic acid (40%)
In a clinical setting this could be implemented with advice to consume foods that have some evidence to suggest they improve glutathione status such as lean protein sources, brassica vegetables, polyphenol-rich fruits and vegetables, herbs and spices, green tea, and omega-3 fatty acid rich-foods such as fish
Blood Sugar and Glutathione Some research has suggested a connection between insulin resistance, diabetes, and glutathione levels