Matt Segar, MD, points out, changes in biomarkers do not necessarily translate to clinical benefit. Skin health and UV exposure Astaxanthin naturally accumulates in the skin, where it can help absorb UV light and counteract the oxidative stress that leads to visible aging
Avoid GHK-Cu if you have Wilsons disease (due to the risk of copper accumulation), an active or history of certain cancers (due to growth factor effects and angiogenesis promotion), are pregnant or breastfeeding (safety not definitively established), or have known copper metabolism disorders or peptide allergies
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