Another early investigation published in the European Journal of Endocrinology documented that, unlike older GH-releasing peptides, such as GHRP-2 or GHRP-6, ipamorelins GH stimulation is highly selective and does not significantly increase cortisol or prolactin levels, suggesting a cleaner hormonal profile with fewer off-target endocrine effects compared to earlier secretagogues
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Tesamorelin stimulates GHRH receptors more effectively through its stabilized molecular structure
GPx activity varies by sample type and substrate, with the highest activity in erythrocytes, followed by liver, kidney, and serum
(2019) 6:e82130