DSIP is a neuropeptide naturally produced in the hypothalamus
And the term "copper peptides" itself is doing a lot of unearned work, because it lumps together GHK-Cu (the molecule with 50 years of evidence) with AHK-Cu, GHK-NH2, and a range of synthetic copper-binding sequences that have far thinner mechanism data
Each product links straight to the lab's own record, so you can check the exact purity figure yourself before you buy nothing to take on trust
Navigating the B12 road: assimilation, delivery, and disorders of cobalamin
The funder had no role in the design, data collection, data analysis, and reporting of this study
And then to go even further on the extreme, and this isn't something I'm at all advocating, but I just want you to understand the concept with respect to temperature, sauna temperature and dose and duration