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Growth Hormone & Endocrine Research Peptides

GHRH analogs, ghrelin receptor agonists, growth factors and gonadotropins used in research on the hypothalamic pituitary axes. Single compounds and a ready combined blend, each supplied lyophilized with batch records.

About growth hormone and endocrine research peptides

Endocrine research peptides are used to study the hypothalamic and pituitary signals that control growth hormone and reproductive hormones. Two receptor systems dominate GH research: the GHRH receptor, targeted by CJC-1295, Sermorelin and Tesamorelin, and the ghrelin receptor, targeted by Ipamorelin, GHRP-2 and GHRP-6.

Researchers often combine one compound from each system to study synergy, which is why the CJC-1295 + Ipamorelin Combo is supplied in a single vial. Downstream of GH, IGF-1 LR3 is widely used in cell culture and receptor research, and HGH 191AA serves as the full length reference hormone.

Reproductive axis compounds

HCG, HMG and Gonadorelin Acetate cover the gonadotropin side of endocrine research, from GnRH receptor signaling to LH and FSH receptor activity. PT-141 is included for central melanocortin receptor studies.

Compounds in this collection

Choosing compounds for your study

Start with the pathway or tissue you want to study, then compare the compound classes listed above. Single compounds give the cleanest readouts, while blends and bundles make combination and comparison studies easier to set up. Every product page lists the compound class, sizes, specifications and storage guidance.

Storage and documentation

Products in the endocrine research collection ship lyophilized or sealed, protected from light, with a batch number on every vial. Move vials to cold storage on arrival and request the certificate of analysis for your batch through our contact page.

Common questions

What is the difference between CJC-1295 with DAC and without DAC?

CJC-1295 with DAC carries a Drug Affinity Complex that binds albumin and extends its half life to days. The version without DAC, also called Modified GRF (1-29), has a short half life and is used to study pulsatile release.

Why combine CJC-1295 and Ipamorelin?

They act on two different receptors that both control growth hormone release. Studying them together lets researchers examine how GHRH receptor and ghrelin receptor signaling interact.

How are HCG and HMG measured?

Gonadotropins are measured in international units (IU) based on biological activity rather than by weight.

Do these products ship with a certificate of analysis?

Every vial has a batch number linked to a certificate of analysis. Send us your order and batch number and we will send the record.

How should I store products from this collection?

Store sealed lyophilized vials at -20 °C and protected from light. Move them to cold storage as soon as they arrive.