In cosmetic products, GHK-Cu has been studied in the context of tightening loose skin, improving elasticity and firmness, reducing fine lines, wrinkles, and hyperpigmentation, and enhancing overall skin appearance
But, now, a little-known advisory group to the US Food and Drug Administration will be meeting this week to discuss whether restrictions around them should be eased in certain use cases, making them safer, and easier to access
It works through an entirely different mechanism, targeting amylin receptors rather than GLP-1 receptors alone, and that means its side effect profile carries its own unique characteristics that deserve careful examination
These reactions usually resolve within hours and decrease with continued use as the body adapts
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University of California at Los Angeles, Los Angeles, CA: Michael Strober, Ph.D