Growth hormone secretagogue peptides for anabolic research — Ipamorelin, CJC-1295, MK-677, Hexarelin. ≥99% HPLC verified, independent lab tested, express cold-chain delivery.
Buy growth hormone secretagogue peptides online — CJC-1295, Ipamorelin, MK-677, Hexarelin and GHRP-6 — all HPLC-verified at ≥99% purity with full Certificate of Analysis. This category covers two complementary classes of GH-stimulating compounds. GHRH analogs like CJC-1295 (with or without DAC) act on the pituitary GHRH receptor, amplifying endogenous growth-hormone pulse amplitude. Ghrelin mimetics such as Ipamorelin, Hexarelin and GHRP-6 act on the GHS-R1a receptor, increasing GH pulse frequency and avoiding significant cortisol or prolactin rise. Combined, these two classes produce synergistic GH release with preserved pulsatility — the most-studied peptide stack in somatotropic-axis research. MK-677 (Ibutamoren) is a non-peptide oral GH secretagogue offering sustained IGF-1 elevation for chronic-dosing protocols. All compounds ship with reconstitution guidance, storage instructions, and published half-life references. Whether you are studying sarcopenia, exercise recovery, lean tissue accretion, IGF-1 axis response or body-composition models, this category provides the pharmaceutical-grade building blocks your research protocol requires. Most researchers pair these compounds with the tissue-repair peptides (BPC-157, TB-500) in our recovery range for a complete anabolic-plus-repair protocol.
Growth hormone secretagogues work through two complementary pathways: GHRH receptor activation (pituitary stimulation) and ghrelin receptor (GHS-R1a) activation. Combining both pathways produces synergistic GH release that mimics amplified physiological patterns.
Ipamorelin is the most selective ghrelin mimetic available. It stimulates GH release without significantly affecting cortisol, prolactin, or aldosterone — making it the preferred tool for studying isolated GH-mediated effects on muscle protein synthesis.
CJC-1295 with DAC (albumin-binding modification) extends the half-life of GHRH from minutes to approximately 6-8 days. A single administration produces sustained elevation of both GH and IGF-1, enabling long-duration research protocols.
The combination of a GHRH analog (CJC-1295) with a ghrelin mimetic (Ipamorelin) is one of the most studied peptide stacks. They work through different receptor pathways, producing additive GH release with preserved pulsatility.
GHRH peptides (like CJC-1295) stimulate the pituitary via the GHRH receptor, amplifying GH pulse amplitude. GHRP peptides (like Ipamorelin) work via the ghrelin receptor (GHS-R1a), increasing GH pulse frequency. Combined, they produce synergistic effects.
Secretagogues preserve the natural pulsatile GH release pattern, which research suggests is important for optimal anabolic signaling. Direct GH creates a sustained spike that doesn't mimic physiological secretion.
Store lyophilized peptides at -20°C for long-term or 2-8°C for short-term. After reconstitution with bacteriostatic water, refrigerate at 2-8°C and use within 30 days. Never freeze reconstituted solutions.
A Physician's Endorsement
Quality assurance isn't a marketing claim — it's a daily decision. I choose LifeSpanSupply because every batch is independently HPLC-verified to 99% purity, fully traceable, and held to the safety standards my patients deserve.
Dr. Pichaya Sangaunmu
M.D. · Wellness · Beauty · Longevity
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Modified GRF 1-29 — a short-acting synthetic GHRH analog without the albumin-binding DAC linker.
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