Description
Sermorelin 5mg is a 5mg vial of Sermorelin, a GHRH analog, supplied by Blue Sky Peptide as freeze-dried powder. This batch tested at 99.16% purity. It’s intended for lab research only.
About Sermorelin
Sermorelin is GHRH(1-29), the first 29 amino acids of growth hormone releasing hormone. It’s the shortest fully active piece of GHRH.
It was FDA-approved as Geref for pediatric GH deficiency and later withdrawn for commercial reasons.
How Sermorelin works
Sermorelin is the shortest piece of GHRH that still works. It binds the GHRH receptor on the pituitary and triggers growth hormone release.
Because it works through the body’s own GH control, the pituitary’s feedback loops stay intact. The trade-off is a very short half-life.
Sermorelin 5mg product details
- Compound: Sermorelin
- Also known as: GHRH(1-29)
- CAS number: 86168-78-7
- Molecular formula: C149H246N44O42S
- Molar mass: 3,357.9 g/mol
- Structure: 29 amino acids (GHRH 1-29 amide)
- Amount: 5mg per vial
- Form: lyophilized (freeze-dried) white powder
- Source: chemical synthesis
- Purity: 99.16% (mass spectrometry and HPLC-UV)
- SKU: BSP-SERMO-5
- Use: laboratory research only
What the research says about Sermorelin
Clinical work in the 1990s studied it in children with GH deficiency and in older adults.
Its half-life is only minutes.
For the original studies, try this PubMed search.
How Sermorelin compares
Here’s how Sermorelin 5mg fits among related compounds. Sermorelin is the unmodified first 29 amino acids of GHRH, broken down within minutes. By comparison:
- CJC-1295 No DAC is a stabilized GHRH(1-29) with a half-life of about 30 minutes, giving short, natural-looking pulses
- CJC-1295 DAC binds albumin and lasts about a week, giving a raised GH baseline instead of short pulses
- Tesamorelin is full-length GHRH with a fatty acid cap, the only GHRH analog currently approved as a drug in the US
These are all GHRH analogs, acting on the same receptor. The real difference is how long each one lasts, which decides whether you get short pulses or a raised baseline. See them all on our growth hormone peptides page.
Sermorelin 5mg purity and testing
Purity for this batch of Sermorelin 5mg came back at 99.16% by HPLC and mass spectrometry. That’s the figure for the batch currently in stock.
Every vial is labeled with the compound, the amount and the batch. If your lab keeps paperwork on file, email us the batch number from the label and we’ll send the certificate of analysis for it.
Write the batch number in your lab notes when you open a new vial. If you ever need to compare results between orders, that’s the detail you’ll want.
Reconstituting Sermorelin 5mg
Concentration is the amount in the vial divided by the liquid you add. With 5mg in this vial:
- 1mL of water gives 5mg/mL
- 2mL of water gives 2.5mg/mL
- 3mL of water gives 1.67mg/mL
Pick the volume that keeps your own calculations simple, then write the concentration and the mixing date on the label.
Use sterile bacteriostatic water. Warm the sealed vial to room temperature first so no condensation gets in, add the water slowly along the glass wall, and swirl gently until it’s clear. Never shake it.
How to store Sermorelin 5mg
Freeze-dried Sermorelin 5mg is stable at room temperature for shipping, but for anything longer keep it in a freezer at -20°C, away from light. Once mixed, keep it in the fridge at 2 to 8°C and use it within about four weeks.
Vials are small and easy to knock over or misplace. Our vial storage case and hard storage box each hold ten, so a whole study’s worth stays together.
Other Sermorelin strengths
- Sermorelin 2mg: 2mg for $33.77, about $16.89 per mg
- Sermorelin 5mg (this page): 5mg for $38.32, about $7.66 per mg
For longer projects Sermorelin 5mg works out cheaper per milligram, and you’ll reorder less often.
Related to Sermorelin 5mg
- CJC-1295 No DAC 2mg (Mod GRF 1-29), a GHRH analog
- MGF (Mechano Growth Factor) 2mg, an IGF-1 splice variant peptide
- IGF-1 DES 1mg, a truncated IGF-1
- GHRP-2 5mg, a GH releasing peptide
- HGH Fragment 176-191 5mg, an hGH fragment
Browse the full growth hormone peptides range, or see everything on our research peptides page.
Common questions about Sermorelin 5mg
How much is in the Sermorelin 5mg vial?
5mg of freeze-dried powder. The amount is printed on the label.
How should I store it?
Sealed vials keep at room temperature in transit. For storage, use the freezer long term or the fridge for a few weeks. Once mixed, refrigerate and use within about 28 days.
Can Sermorelin be used in people or animals?
No. It’s sold for laboratory research only and isn’t approved for human or veterinary use.
Is Sermorelin 5mg in stock?
Yes, Sermorelin 5mg is in stock now and ready to ship.
Is there a COA for Sermorelin 5mg?
Yes. Each batch has a certificate of analysis filed under the batch number on the label. Email us that number and we’ll send it.
Order Sermorelin 5mg today
Ready to order? Sermorelin 5mg costs $38.32 and is in stock. Add it to your cart and you’re done. Ordering several vials? Add a storage case to keep them together.
Need more for the same project? See the rest of our growth hormone peptides.
For laboratory research use only. Not for human or veterinary use. Not evaluated by the FDA.





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