Note: The above statements have not been evaluated by the FDA (U.S
conducted a 12-week facial study on 67 women and reported that GHK-Cu cream applied twice daily improved aged skin appearance, increased thickness, reduced wrinkles and strongly stimulated dermal keratinocyte proliferation as determined by histological analysis of biopsies
judging it at day 3 tells you nothing
It may also help improve cellular energy and mitochondrial function, which can support overall energy levels, endurance, and healthy aging
While all of these compounds stimulate natural growth hormone release, they differ in their side effects, duration of action, and interaction with other hormones like ghrelin , cortisol , and prolactin
There might be other pathways/genes account for the differences