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Tucker, M., Keely, A., Park, J
If you take high doses over a long period of time, niacin can damage the liver
Third-party testing certificates (also called Certificates of Analysis or COAs) should confirm peptide identity and purity, ideally through HPLC and mass spectrometry
While direct clinical trials specifically on active acne vulgaris are limited, the observed benefits are highly relevant to acne-prone skin: Improved Skin Density and Thickness: Clinical studies have shown GHK-Cus ability to increase skin density and thickness, which can contribute to a plumper appearance and potentially reduce the visibility of shallow scars
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