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Cosmetic R&D labs use research-grade GHK-Cu as a reference compound during formulation screening, ingredient stability testing, and comparative efficacy work against alternative copper peptides or skin-active reference materials

*Multiple analytes may be billed under a single CPT code

2021;85(6):e413

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Similarly, as observed in tumor cells, they exhibit a higher number of transferrin receptors on their surface, facilitating elevated rates of iron uptake