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Five decades of research, peer-reviewed clinical data, and 3D imaging studies all point to the same conclusion: this copper peptide produces real, measurable, compounding improvement in skin quality with consistent use
Unless you have a vitamin C deficiency, which rarely occurs in generally healthy people, it is probably not necessary for you to take large doses of this vitamin.
Miyazaki I, Asanuma M
10.1038/s41586-019-1705-2 8 Bosello-TravainV.ConradM.CozzaG.NegroA.QuartesanS.RossettoM.et al (2013)
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