Thymalin

Solo Peptide · Longevity Track

What it is

A peptide bioregulator extracted from thymus tissue — one of the original Khavinson-protocol bioregulators studied for immune-aging support across decades of Russian gerontology research. Physician-prescribed and compounded in the U.S. by a 503A-licensed pharmacy.

Who it’s for

Adults focused on immunosenescence — the slow erosion of immune function that comes with age. Patients running longevity protocols often add Thymalin alongside Epithalon and Pinealon to support the broader bioregulator stack the Khavinson research describes.

How it works

Thymalin signals the thymus to maintain T-cell maturation function — the bottleneck where immune resilience starts to fade after midlife. The Khavinson literature reports gene-expression effects rather than acute immunostimulation: subtle, slow, and aimed at the long arc of immune health rather than fast knockouts.