However, absorption rates may vary slightly between sites
In a widely cited study, scientists reported that MOTS-c targets muscle tissue and helps regulate metabolism, which is why it is studied for glucose handling and insulin sensitivity (Cell Metabolism research summarized by the National Institutes of Health)
New GHK-Cu Research & News Highlights (2025) While copper peptides are best known for their role in skincare, newer studies are starting to look beyond surface-level applications and explore how GHK-Cu interacts with deeper biological pathways
Abbas H, Sayed NSE, Youssef N, Mousa PMEG, Fayez MR, Elsheikh AMMA
[DOI] [PubMed] [Google Scholar] Kaur A., Negi P., Sarna V., Prasad R., Chavan B.S., Malhotra A., Kaur G
The most probable scenario is that compounding pharmacies would be permitted to produce certain peptides under FDA oversight, allowing licensed health-care professionals to prescribe them. This would be similar to what happened with semaglutide, the active ingredient in GLP-1 medications like Ozempic, he says