One Small Modification. A Very Different Research Profile.
Search CJC-1295 and one of the first questions you will encounter is:
“With DAC or without DAC?”
That question matters because DAC is not simply a marketing suffix.
The original human CJC-1295 research describes a long-acting growth hormone-releasing hormone analogue engineered to bind endogenous albumin, extending systemic exposure for several days. In healthy adults, its estimated half-life was approximately 5.8–8.1 days.
For research procurement, that makes DAC status part of molecular identity, not a minor packaging detail.
What Is CJC-1295 with DAC?
CJC-1295 with DAC is also described as CJC-1295 DAC, DAC:GRF and a long-acting GHRH analog.
SUNONE currently lists the material under:
CAS: 446262-90-4
Molecular Formula: C165H269N47O46
Molecular Weight: approximately 3647.2 g/mol
Grade: ≥98%, HPLC / Research
Form: Lyophilized solid
Storage: −20°C
Documentation: batch-specific COA, HPLC and MS data.
These identifiers support important search terms such as CJC-1295 with DAC supplier, CJC-1295 DAC peptide, DAC:GRF and long-acting GHRH research peptide.
Why “With DAC” Is More Than a Half-Life Claim
In the original clinical literature, CJC-1295 was designed to bind albumin after administration.
That modification produced sustained GH and IGF-I elevations lasting several days after a single exposure. A follow-up human study found that GH pulsatility was still detectable during the prolonged stimulation.
This is why research buyers should be cautious when Google results casually group together:
CJC-1295 with DAC
CJC-1295 No DAC
Modified GRF 1-29
Closely related search terminology does not automatically mean identical analytical material.
What Do Positive and Negative CJC-1295 Reviews Say?
Online sentiment is mixed.
Some users report perceived improvements in sleep, recovery or body composition while using CJC-1295-containing products. One community report described noticeable sleep and recovery effects with CJC-1295 itself.
Other discussions raise concerns about bloating, facial puffiness, tingling sensations, water retention or poorer sleep.
These experiences are anecdotal.
The exact molecule, purity, concomitant compounds and product source are often unknown.
For professional procurement:
reviews describe user perception.
Analytical documentation describes the batch.
Why HPLC Purity Alone Is Not Enough
Current 2026 supplier certificates illustrate an important distinction.
Some batch records separately report:
HPLC purity
mass-spectrometry identity
active peptide content
lot number and source-batch traceability
One recent CJC-1295 with DAC COA, for example, reported HPLC purity and independently confirmed molecular identity by mass spectrometry. Another supplier explicitly explains that purity answers how clean a chromatographic peak appears, while LC-MS helps answer whether the material is actually the intended molecule.
For B2B buyers, those are different questions.
FDA Has Also Flagged Characterization and Safety Concerns
FDA currently notes that compounded products containing CJC-1295 may present concerns involving peptide-related impurities, API characterization and potential immunogenicity, and states that available clinical information remains limited.
FDA has also identified serious adverse-event reports including increased heart rate and systemic vasodilatory reactions.
That does not determine the quality of a specific SUNONE research lot.
It does reinforce why peptide identity and batch-specific analytical documentation matter.
SUNONE CJC-1295 with DAC Research Peptide
Sunone (Hong Kong) Biopharmaceutical International Technology Co., Limited supplies CJC-1295 with DAC for qualified laboratory, analytical and biopharmaceutical research.
Current SUNONE information lists a 5 mg × 10-vial B2B configuration, made-to-order availability and batch-specific COA, HPLC and MS documentation according to the applicable specification.
View SUNONE CJC-1295 with DAC Specifications：
Looking for a CJC-1295 with DAC Supplier?
For peptide laboratories, biotechnology businesses and research distributors, the strongest sourcing question is not simply:
“Is it CJC-1295?”
It is:
“Can you verify that this exact batch is CJC-1295 with DAC and connect that identity to its analytical documentation?”
For organizations sourcing CJC-1295 DAC, DAC:GRF, long-acting GHRH analogs or related research peptides, SUNONE can provide current product specifications, batch documentation, packaging, MOQ and B2B quotation information.
Conclusion
CJC-1295 with DAC is not defined only by a purity percentage.
Its long-acting profile depends on a specific molecular design associated with albumin binding.
DAC status matters.
Molecular identity matters.
HPLC purity and MS identity answer different questions.
And online user experiences do not replace batch documentation.
For professional research sourcing:
verify the exact molecule, verify the analytical identity, verify the purity result and verify the batch-specific COA.
The CJC-1295 keyword may generate the search.
Batch transparency should generate the inquiry.
This content is provided for scientific and educational purposes only. SUNONE research peptide is for qualified labrtorynt, diagnois, druc tor mmatct or veteimant, use.research only, Not for human consumption, clinical treame. Purchasers are responsible for complying with applicable laws and regulations in their jurisdiction.
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