Walk through the websites of enough peptide suppliers and you will find purity claims everywhere. 98%+. 99%+. Occasionally something vague like “high purity” with no number attached at all. For researchers who understand what they are working with, these numbers…

For researchers working in the field of metabolic science, 2023 and 2024 produced a significant volume of data on a compound that had previously existed largely in preclinical obscurity. Retatrutide — a triple receptor agonist targeting GLP-1, GIP, and glucagon…

There are compounds that attract scientific attention for a season, and there are compounds that keep earning it decade after decade. GHK-Cu — copper peptide — is firmly in the second category. First isolated in human plasma in the 1970s,…