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Comparative studies have found GHK-Cu to be as effective as retinol and vitamin c in improving visible signs of aging, but with significantly lower rates of skin irritation
One study has shown that oral and transdermal glutathione supplementation has a positive effect on glutathione levels
While this can be beneficial for those with diabetes, recent studies have shown agonist medications like GLP 1 can cause serious adverse effects, especially in those who are not diabetic
For an MSC product intended to reduce oxidative stress, release criteria should include antioxidant activity, ROS-suppressive capacity, or Nrf2-related effects
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