Peptide library
Your guide to this compound.
This resolves the peptide’s name and sequence. It does not validate hormone-restoration claims: the measured endpoints were laboratory fluorescence and binding.
Primary publication identity and indexed abstract checked; earlier selected full-text assessment retained.
Selected full-text methods/results assessed. Fluorescent labelling and multi-peptide assays limit transfer to unmodified KEDG in people. Clinical sign-off remains pending.
Editorial assessment · 2026-09-07
Fluorescently labelled peptides in HeLa cells and cell-free oligonucleotide/DNA assays.
The study reports nuclear fluorescence and sequence-dependent interactions in a panel including Testagen; it does not measure testosterone, fertility or patient outcomes.
Fluorescently labelled peptides in HeLa cells and cell-free oligonucleotide/DNA assays.
Source · Indexed abstract: named peptide sequences and fluorescence assays
Identity documentation and publication do not confer marketing authorization. No new jurisdiction-specific approval claim is made.
Selected full-text methods/results assessed. Fluorescent labelling and multi-peptide assays limit transfer to unmodified KEDG in people. Clinical sign-off remains pending.
Identity and evidence must be read separately.
This resolves the peptide’s name and sequence. It does not validate hormone-restoration claims: the measured endpoints were laboratory fluorescence and binding.
The catalog primarily cites laboratory or animal research. Human benefit, a safe dose and long-term risks cannot be inferred from those findings.
The catalog primarily cites laboratory or animal research. Human benefit, a safe dose and long-term risks cannot be inferred from those findings.
Testagen is the tetrapeptide Lys-Glu-Asp-Gly (KEDG) in the cited experimental literature. It is not a testosterone formulation.
Catalog identity only; not authentication of a purchased vial or clinical approval.
Indexed abstract: named peptide sequences and fluorescence assays
The study reports nuclear fluorescence and sequence-dependent interactions in a panel including Testagen; it does not measure testosterone, fertility or patient outcomes.
Fluorescently labelled peptides in HeLa cells and cell-free oligonucleotide/DNA assays.
Indexed abstract: named peptide sequences and fluorescence assays
Fedoreyeva et al. Biochemistry (Moscow). 2011. PMID 22117547.
PMID: 22117547
Catalog review date: Sep 7, 2026. This date alone does not establish independent clinical review.