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Use Multiple Strong Actives Without Guidance: Combining GHK-Cu with certain potent ingredients like high concentrations of Vitamin C, AHAs/BHAs, or strong retinoids without proper knowledge can lead to irritation or reduced efficacy

2024;134(19): e182121

No masculinizing side effects occur, IGF-1 doesn't interact with androgen receptors like anabolic steroids do

This single ingredient alone can address multiple skin concerns at once

[DOI] [PubMed] [Google Scholar] 70.Pickart L

These findings suggest that iPSC-derived grafts may outperform ESCs-derived grafts in certain contexts, however, outcomes are likely to be model- and species-dependent, underscoring the need for case-by-case evaluation