What the research shows
Researchers compared KEDG and a related peptide in young chickens and old hens after surgical removal of the pituitary gland. They reported changes in thyroid hormone measurements and thyroid structure. This animal experiment supplies no direct evidence on testosterone or fertility in humans. Avian thyroid study.
A separate team synthesized KEDG and studied how it adheres to copper in salt water. They measured reduced corrosion under laboratory conditions. The paper establishes the precise sequence it tested and addresses a materials-science question. Chemical identity and copper surface experiment.
Documented formats
The copper experiment used synthesized H-Lys-Glu-Asp-Gly-OH in laboratory solutions. The animal research used separately synthesized experimental peptides.
Testing and purity
Compare all four positions. The bird study also tested AEDG, which starts with alanine, and Vesugen is KED, a shorter sequence.
How to read a batch reportQuestions about Testagen
Did the bird study test male reproductive health?
Its measurements concerned thyroid tissue and hormone changes after pituitary removal in birds.
Why is a corrosion study listed?
It is a primary paper that explicitly names Testagen and identifies its synthetic structure. Its results concern the behavior of that molecule on metal.