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Natural copper peptide levels decline as we age

This is one of the most common points of confusion in skincare

Endocrinology 153 , 329338 (2012)

Peripheral blood mononuclear cells (PBMCs) from healthy donors, obtained from peripheral blood or buffy coats, were used as control

doi: 10.1038/nri2192 179 ThielenLShalevA
