Research-context information only. CJC-1295 with DAC is a research peptide on the FDA 503A bulks Category 2 list. Protocols, doses, and reactions reported below come from published research and self-reported community sources. This article reports what has been documented, not what should be done. Consult a licensed physician for personal medical decisions.
The buying problem is that "CJC-1295" frequently means CJC-1295 no-DAC (Mod GRF 1-29) in research-vendor catalogs, but CJC-1295 with DAC is structurally and pharmacokinetically different. Mass spec at 3,649 Da (vs 3,367 Da for no-DAC) is the verification target.
This guide covers documented per-mg pricing, COA verification, vial size selection, and red flags. For dosing context, see the CJC-1295 with DAC dosing guide.
The pattern: Per-mg pricing is higher than no-DAC CJC-1295 ($5-9/mg) because the DAC linker adds synthesis cost and the with-DAC variant has lower vendor competition.
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How to Verify CJC-1295 with DAC Quality
What a COA Should Include
Identity Confirmation
Mass spec confirming 3,649 Da for CJC-1295 with DAC (vs 3,367 Da for no-DAC)
Sequence verification — 30-residue GHRH analog with maleimidopropionic acid linker at Lys30
Practical implication: A 5mg vial at 2mg/week fits the window. At 1mg/week, 5mg vials require staged reconstitution.
Vial Size by Protocol
Standard 1-2mg once-weekly:
5mg vial — fits the typical 4-5 week protocol within stability window
Why CJC-1295 with DAC Costs More Than No-DAC
CJC-1295 with DAC runs $7-18/mg vs $5-9/mg for no-DAC. Two reasons:
1. DAC linker synthesis. The maleimidopropionic acid attachment requires an additional synthesis step beyond the base peptide.
2. Lower vendor competition. No-DAC (Mod GRF 1-29) is the dominant CJC variant in research-vendor catalogs because it pairs with ipamorelin in the popular blend. With-DAC has smaller market share, so per-mg pricing is higher.
Vendor Evaluation Methodology
Price Competitiveness (40%)
Normalize to cost per milligram.
COA & Testing (30%)
Third-party labs
Recent (within 6 months)
Mass spec confirming 3,649 Da (DAC variant)
Reputation (30%)
Community feedback, shipping reliability.
Shipping and Storage
Storage Guidelines
State
Temperature
Duration
Lyophilized
Refrigerated (2-8°C)
12+ months
Lyophilized
Frozen (-20°C)
24+ months
Reconstituted (BAC water)
Refrigerated
~28 days
Where to Buy
1
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Frequently Asked Questions
Is CJC-1295 with DAC legal to buy?
CJC-1295 with DAC is sold as a research peptide labeled 'not for human consumption.' It is not FDA-approved. As of 2023, CJC-1295 is on the FDA 503A bulks Category 2 list. Purchasing research peptides is legal in most US jurisdictions.
How much does CJC-1295 with DAC cost per month?
Community subcutaneous protocols use 1-2mg once weekly. Monthly mass at 2mg/week is 8mg. Research-vendor 5mg vials run $40-90 and 10mg vials run $70-150. Monthly cost ranges from $80-180.
What's the difference between CJC-1295 with DAC and without DAC?
DAC (Drug Affinity Complex) is a maleimidopropionic acid linker that binds to serum albumin, extending half-life from ~30 minutes (no-DAC, also called Mod GRF 1-29) to ~6-8 days (with DAC). With-DAC produces continuous GH elevation rather than pulses; no-DAC produces pulse-mimetic GH release.
What vial size should I buy?
5mg vials are the most-cited size. At 1-2mg once weekly, a 5mg vial lasts 2.5-5 weeks. 10mg vials are common for users at higher doses or back-to-back cycles.
What purity should I look for in CJC-1295 with DAC?
Third-party HPLC at 98%+ purity, plus mass spec confirming 3,649 Da for CJC-1295 with DAC. The no-DAC variant is 3,367 Da. Mass spec is the only reliable distinction — vendors that don't specify DAC vs no-DAC have failed disclosure.
Can I buy CJC-1295 with DAC from a compounding pharmacy?
Not legally in the US. CJC-1295 is on the FDA 503A bulks Category 2 list. Research vendors are the only documented commercial source.
This article is for educational and informational purposes only. It is not medical advice and should not be used to diagnose, treat, or prevent any condition. Consult a licensed healthcare provider before using any peptide.
