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Preclinical studies suggest normalization of thyroid hormone parameters in hypophysectomized models.
Testagen (Lys‑Glu‑Asp‑Gly) belongs to a class of short bioregulatory peptides derived from anterior pituitary extracts. Preclinical research in avian models demonstrates that this tetrapeptide can normalize thyroid hormone levels in hypophysectomized subjects and modulate endocrine signaling along the pituitary–gonadal axis.
Typical Dose
100-300mcg
A 15-amino-acid peptide derived from human gastric juice with potent tissue-healing and anti-inflammatory properties.
Fertility Preservation: Maintains testosterone and spermatogenesis during TRT.
Potential Benefits: Increases in lean body mass, reductions in adipose tissue, improved metabolic parameters.