CW
Retatrutide purity was outstanding
Running metabolic assays with Retatrutide. Lot had >99% purity by reverse-phase HPLC — above spec. Mass spec confirmed molecular weight. Best peptide supplier we've worked with.
HPLC Verified
>98% Purity
COA Included
APEX Performance & Metabolic
Sermorelin
$46.0
Sermorelin is a synthetic analogue of the first 29 amino acids of endogenous GHRH. It stimulates the pituitary to produce and release GH through natural physiological pathways and has been studied extensively in GH deficiency research.
| Format | Lyophilized Vial |
|---|---|
| Dosage | 5mg |
| Purity | >98% |
| Sub-Line | APEX |
In Stock — Overnight and 2–3 day delivery available
Product Information
Sermorelin | GHRH(1-29) Analogue — Research Grade
Sermorelin (GHRH 1-29 NH2) consists of the first 29 amino acids of endogenous growth hormone-releasing hormone and represents the shortest fully active fragment of GHRH. It has been extensively characterised in both preclinical and clinical research contexts.
Mechanism of Action
- GHRH receptor agonism — binds the pituitary GHRH receptor, stimulating GH synthesis and secretion
- Physiological GH pulsatility — preserves the natural nocturnal GH pulse pattern in deficiency models
- Feedback-regulated — subject to normal somatostatin-mediated negative feedback, unlike direct GH administration
Research Areas
Sermorelin has been studied in childhood GH deficiency (FDA-approved diagnostic use), adult GH deficiency, body composition, sleep architecture, and aging research. It remains a benchmark compound in GHRH biology.
For Research Use Only. Rainbow Peptide supplies Sermorelin exclusively for in vitro and laboratory research purposes. Not for human or veterinary use.
Frequently Asked Questions
- What is Sermorelin?
- Sermorelin is a synthetic analogue of the first 29 amino acids of endogenous GHRH. It stimulates the pituitary to produce and release GH through natural physiological pathways and has been studied extensively in GH deficiency research.
- Is Sermorelin for sale at Rainbow Peptide?
- Yes. Sermorelin is available for purchase with Certificate of Analysis confirming >98% HPLC purity. Every order Overnight and 2–3 day delivery available. For Research Use Only.
- What purity is your Sermorelin?
- Rainbow Peptide's Sermorelin is >98% pure, HPLC verified by an accredited third-party laboratory. A COA is included with every order.
- Is Sermorelin safe for human use?
- No. Sermorelin is strictly For Research Use Only (RUO). It is not intended for human consumption and is not intended to diagnose, treat, cure, or prevent any disease.
- How quickly does Sermorelin ship?
- Overnight and 2–3 day delivery available. Ships in temperature-controlled packaging.
Third-Party Verified
Every Order Ships with a Certificate of Analysis
We don't just claim purity — we prove it. Every batch of Sermorelin is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.
- HPLC purity analysis — minimum threshold >98%
- Mass spectrometry — molecular weight confirmation
- Lot number traceable to your order
- Endotoxin limits verified — safe for cell-based assays
RAINBOW PEPTIDE LABS CERTIFICATE OF ANALYSIS
Product Sermorelin
Lot # RP-00020-A
HPLC Purity >98.0% >98.5% PASS
Mass Spec (MW) Confirmed Confirmed PASS
Endotoxin <1 EU/mg <0.5 EU/mg PASS
Visual Inspection White powder White powder PASS
What Researchers Say
Verified purchases from active research labs and scientists
5.00
★★★★★
2 verified reviews DP
Ipamorelin quality confirmed via QC
Internal verification confirmed COA data. Purity was 98.6% HPLC. Peptide behavior in our assay was consistent with published data. Will order again for next study phase.
BS
Consistent performance for research
AOD-9604 arrived quickly and in excellent condition. Cold pack preserved temperature. COA was thorough. Results in metabolic assays consistent with expected parameters.
