Cortagen

Cortagen is a synthetic tetrapeptide designed to normalize gene expression patterns in neurons and glial cells. Researchers study its potential for brain health, particularly concerning aging and neurodegeneration.

In the literature, Cortagen appears most often in work focused on brain health, neuroprotection and anti-aging. Studies in this area tend to look at mechanisms and observed effects in laboratory and preclinical settings rather than outcomes in people, so the picture is best read as a map of where researchers have been curious — not as evidence of any benefit.

Because it is catalogued here under powder peptides, Cortagen also shows up in discussions of cognition. Coverage across those topics varies widely in quality and depth, and much of it is early-stage. Reading the underlying research directly is the only way to judge how strong any particular finding is.