PEPTIDES·INDEX
72 peptides417 listingsUpdated 3h agoBuild My Stack
Library

TestagenLongevity

Khavinson peptide bioregulator (research use only).

Sexual Health
Rating1/5SpeculativeHuman dataSafety
Compare prices — from $45.00
StatusResearch only
FDA-approvedNO
PrescriptionNO
From$45.00

Overview

Testagen is a synthetic tetrapeptide, lysine-glutamate-aspartate-glycine (Lys-Glu-Asp-Gly / KEDG), from Vladimir Khavinson's family of short peptide bioregulators, where it is listed as a regulator of the male reproductive system. The evidence behind that label is thin: the in-vivo studies we found tested KEDG in chickens whose pituitary glands had been removed, described it as derived from anterior-pituitary extracts, and measured thyroid and thymus structure, not testicular function. We found no human studies and no PubMed-indexed study of male reproductive tissue. It is not FDA-evaluated and is sold only as a research chemical.

Related compounds

Super-HLongevityVendor research blend.NAD+LongevityCoenzyme studied for cellular energy and longevity.NAD+ / MOTS-c / 5-Amino-1MQLongevityNAD+ + MOTS-c + 5-Amino-1MQ metabolic & longevity blend.ThymogenLongevityThymus-derived dipeptide (Glu-Trp) studied for immune modulation; trialed in the US as IM862.

Sources

Starting references for the library summary. These are not dosing instructions or medical advice.

Peptide Regulation of Gene Expression: A Systematic ReviewMoleculespubmed.ncbi.nlm.nih.gov/34834147/…Effects of peptides Lys-Glu-Asp-Gly and Ala-Glu-Asp-Gly on hormonal activity and structure of the thyroid gland in hypophysectomized young chickens and old hensBulletin of Experimental Biology and Medicinepubmed.ncbi.nlm.nih.gov/22268052/…Effect of peptides Lys-Glu-Asp-Gly and Ala-Glu-Asp-Gly on the morphology of the thymus in hypophysectomized young and old birdsBulletin of Experimental Biology and Medicinepubmed.ncbi.nlm.nih.gov/23658898/…

For research-use educational context only. Not medical advice and not a recommendation to use any compound. Consult a qualified healthcare professional before any health decision.