5mg vial · Lyophilized powder
Modified GRF 1-29 — a short-acting synthetic GHRH analog without the albumin-binding DAC linker.
Relative emphasis across the research domains this compound is most studied for.
Sourced direct from a vetted GMP-aligned manufacturer. No re-labels, no middle layers.
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CJC-1295 (no DAC), also called Modified GRF 1-29, is a synthetic GHRH analog stabilized against dipeptidyl peptidase-IV cleavage. Without the DAC linker, its plasma half-life is approximately 30 minutes — meaning each injection produces a discrete GH pulse rather than a sustained elevation. Research models use it to study acute GH axis responses, and it is often paired with a GHRP such as Ipamorelin, which triggers pulses against the elevated GHRH tone.
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Reference material & peer-reviewed citations
Based on 245 verified researcher orders.
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Switched over after my last vendor product seemed off — wrong color, late shipping, no documentation. Night and day difference here. Sealed properly, lot number matches the docs, and the product is doing what it is supposed to. Glad I switched.
Research peptides are chemical reagents for laboratory analysis. Regulations vary by jurisdiction — it is the buyer's responsibility to ensure compliance with local laws. See our Terms & Conditions page for the full regulatory framework across the EU, UK, US, Switzerland, Thailand, and other major markets.
Lyophilized (unreconstituted) peptides should be stored at -20°C for long-term storage or 2-8°C (refrigerated) for short-term use. Once reconstituted with bacteriostatic water, store at 2-8°C and use within 30 days. Avoid repeated freeze-thaw cycles — aliquot into smaller portions if needed.
For laboratory research use only. Not for human consumption, diagnosis, treatment, prevention, or in-vivo administration. By purchasing you confirm you are a qualified researcher or institution.
Reconstitute the 5mg vial with 2mL bacteriostatic water → 2.5 mg/mL. On a U-100 insulin syringe, 4 IU = 0.04 mL = 100 mcg per pulse.
Three days from order to my door, with the cold pack still cold on arrival. The product was sealed properly, label was legible, batch number matches the certificate they emailed me ahead of delivery. Could not really ask for more.
Gently inject bacteriostatic water (bacteriostatic water) along the inside wall of the vial — do not spray directly onto the powder. Let it dissolve naturally or gently swirl. Never shake vigorously. Standard reconstitution: add the desired volume of bacteriostatic water based on your concentration needs. For example, 5mg peptide + 2.5ml bacteriostatic water = 2mg/ml concentration.
Yes. Every batch undergoes independent third-party HPLC (High-Performance Liquid Chromatography) and mass spectrometry analysis. We provide a Certificate of Analysis (COA) for each product, verifying identity, purity (≥99%), and the absence of contaminants. COA documents are available for download on each product page.
Yes. We offer temperature-controlled shipping to most EU and Asian countries. Standard EU delivery is 24-48 hours. International orders are shipped in discreet, professional packaging with cold-chain protection where required. Customs documentation and regulatory paperwork are provided as needed.
We currently operate on an inquiry-based ordering system. Submit your order through checkout and our team will contact you within 24 hours to confirm details and arrange payment. We are working on integrating direct payment options for a seamless experience.
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
Three curated paths into the research literature on this compound.
Selected peer-reviewed publications on this research compound, resolvable via DOI to the publisher of record.
Teichman SL, Neale A, Lawrence B, Gagnon C, Castaigne JP, Frohman LA. (2006). Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults. Journal of Clinical Endocrinology & Metabolism.
doi.org/10.1210/jc.2005-2611Ionescu M, Frohman LA. (2006). Pulsatile secretion of growth hormone (GH) persists during continuous stimulation by CJC-1295, a long-acting GHRH analog. Journal of Clinical Endocrinology & Metabolism.
doi.org/10.1210/jc.2006-1244Sigalos JT, Pastuszak AW. (2018). The safety and efficacy of growth hormone secretagogues. Sexual Medicine Reviews.
doi.org/10.1016/j.sxmr.2017.02.004Citations are provided for research reference only and do not constitute medical advice. Reagents are sold strictly for laboratory use; consult primary sources for full study design, dosing, and limitations.
