CJC-1295 DAC 10mg: Research Use, Reconstitution, and Storage

CJC 1295 DAC 10mg is a 10-milligram vial of a long-acting growth hormone-releasing hormone (GHRH) analog sold strictly as a laboratory research chemical. The DAC modification lets the peptide bind to albumin in blood, extending its half-life from minutes to roughly a week in research models. The 10 mg size is the largest standard vial and is usually bought by labs that want many small experiments from a single lot.

What Is CJC-1295 DAC?

CJC-1295 is a synthetic copy of GHRH, the peptide the hypothalamus uses to signal the pituitary gland to release growth hormone. The DAC, or Drug Affinity Complex, adds a maleimide group that forms a stable bond with serum albumin once the peptide is in circulation.

That albumin bond is the entire point of the modification. Unmodified GHRH clears from the body in minutes, while the DAC version stays measurable for days. A 10 mg vial arrives as a lyophilized powder, meaning the peptide was freeze-dried into a cake at the bottom of the glass. It is not a liquid and it is not a finished pharmaceutical product.

CJC-1295 DAC is not FDA-approved for human use in the United States.

CJC-1295 With DAC vs. CJC-1295 No DAC

Two different peptides share the CJC-1295 name, and they behave nothing alike. The version without DAC is also called Mod GRF 1-29 or modified GRF.

Feature	CJC-1295 with DAC	CJC-1295 no DAC (Mod GRF 1-29)
Reported half-life	About 6-8 days in research models	About 30 minutes
Albumin binding	Yes	No
Growth hormone release pattern	Prolonged, steady elevation	Short, pulsatile bursts
Typical research frequency	Once weekly or a few times per week	Two to three times daily
Common vial sizes	2 mg, 5 mg, 10 mg	2 mg, 5 mg, 10 mg

Labs that want a pulsatile growth hormone signal usually reach for the no-DAC peptide and follow protocols similar to a standard cjc-1295 no dac dosage. Labs studying continuous exposure tend to choose the DAC version. Many buyers also keep a cjc 1295 dac 5mg vial on hand for small pilot runs before committing to the larger 10 mg size.

Reconstitution Math for a 10mg Vial

Reconstitution means adding bacteriostatic water to the powder so it can be measured with a syringe. The volume you add sets the concentration, and the concentration decides how much liquid equals any given amount of peptide.

Water added	Concentration	Volume for 100 mcg	Units on a U-100 syringe
1 mL	10 mg/mL (10,000 mcg/mL)	0.01 mL	1 unit
2 mL	5 mg/mL (5,000 mcg/mL)	0.02 mL	2 units
3 mL	3.33 mg/mL (3,333 mcg/mL)	0.03 mL	3 units
5 mL	2 mg/mL (2,000 mcg/mL)	0.05 mL	5 units

Add the water slowly down the inside wall of the vial instead of spraying it directly onto the powder. Swirl gently until the cake dissolves. Shaking or vigorous mixing can denature the peptide and ruin the batch.

Measurement errors matter more at high concentrations. A 10 mg vial reconstituted with only 1 mL leaves almost no room for error, because a single tick mark on the syringe equals 100 mcg.

Storage and Handling

• Unreconstituted powder: store in a freezer at -20°C or colder, protected from light.
• Reconstituted solution: refrigerate at 2-8°C and use within a few weeks. Bacteriostatic water slows bacterial growth but does not stop peptide degradation.
• Freeze-thaw cycles: avoid them. Aliquot before freezing if you plan to store reconstituted peptide.
• Shipping: a 10 mg vial should arrive with a cold pack. Powder that arrives warm is not automatically ruined, but repeated temperature swings shorten shelf life.

Legal Status and Safety

CJC-1295 DAC is not approved by the FDA for human use, and vials labeled for research use only cannot legally be sold for human consumption. The FDA has issued warning letters to peptide sellers that market these products for injection.

The World Anti-Doping Agency bans CJC-1295 and every other GHRH analog at all times, in and out of competition.

Published human data are limited. Early trials reported injection-site reactions, flushing, and temporary shifts in blood glucose. No long-term human safety data exist for CJC-1295 DAC, so anyone weighing personal use should consult a licensed healthcare professional rather than a forum thread.

Reading Community Discussions Critically

Threads like cjc-1295 dac reddit and cjc 1295 no dac ipamorelin reddit blend genuine lab notes with vendor promotion, guesswork, and outright fabrication. Forum posts are anecdotes, and anecdotes are not evidence of safety or effectiveness.

Blend questions come up constantly. A typical cjc-1295 no dac ipamorelin 10mg blend dosage thread asks how to divide one 10 mg vial between two peptides, and the answers rarely agree because the math depends entirely on the ratio printed on the label.

Always read the certificate of analysis first. A legitimate vendor publishes third-party HPLC purity results and a mass spectrometry identity confirmation for each lot number.

Key Takeaways

• The DAC and no-DAC forms are not interchangeable in a protocol because their half-lives differ by roughly 300-fold.
• A 10 mg vial is a powder, and every dose calculation depends on how much water is added.
• CJC-1295 DAC is a research chemical, not an approved medicine, and it carries real legal and safety risk.

COMMON QUESTIONS

Frequently Asked Questions

What is a 10mg CJC-1295 DAC vial used for?

It is sold as a laboratory reference material and used in cell and animal studies of GHRH signaling. It is labeled for research use only and is not approved by the FDA for human use. Nothing about the 10 mg size changes that status.

How much bacteriostatic water do I add to 10mg of CJC-1295 DAC?

Most labs add between 1 mL and 3 mL, which produces concentrations of roughly 10 mg/mL down to 3.33 mg/mL. The right volume depends on how small a measurement your syringe can reliably deliver. A common choice is 2 mL, giving 5,000 mcg per mL.

Is CJC-1295 DAC the same as CJC-1295 without DAC?

No. The DAC version binds albumin and has a reported half-life of about 6-8 days in research models, while the no-DAC version, also called Mod GRF 1-29, lasts roughly 30 minutes. They produce different growth hormone release patterns entirely.