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Photodamage, Texture, and Surface Topography Multi-week topical studies in photodamaged skin models reported improvements in laxity, clarity, and firmness metrics, with concurrent reductions in fine-line and coarse-wrinkle measures

eLife 9, e60552

One of the most compelling aspects of this peptide combination is its versatility

Research overwhelmingly describes the safety of GHK-Cu positively, such as when the authors of a 2018 review called it a safe, inexpensive, extensively studied compound.14 However, even though copper peptides have demonstrated an impressive safety track record in studies, there are (as with most skin care actives) a few safety risks to consider