How to reconstitute CJC-1295 without DAC

What the concentration table is doing

Every figure in the table comes from one operation. The peptide mass stated on the vial label is divided by the volume of bacteriostatic water you push into it. Nothing else changes the result. The powder itself adds a negligible amount of volume, so the water volume is treated as the final volume.

Two things are worth noticing. First, the vial size and the water volume are independent choices, and different pairings land on the same concentration: a 5 mg vial in 1 mL and a 10 mg vial in 2 mL both give 5 mg/mL. If you are switching between vial sizes, the concentration is what carries over, not the vial label.

Second, the 3 mL rows produce repeating decimals that get rounded. A 2 mg vial in 3 mL is shown as 0.67 mg/mL, and a 10 mg vial in 3 mL as 3.33 mg/mL. Those are rounded values. Adding more water does not change how much peptide is in the vial, only how thinly it is spread, and it makes each measured volume cover less mass. Whether that is useful depends on how finely your syringe is marked.

Going from concentration to a syringe reading

Concentration answers the question "how much peptide is in a milliliter". To get a syringe reading you need the reverse: how many milliliters contain the mass you are drawing. Divide the dose in milligrams by the concentration in milligrams per milliliter, and the result is a volume in milliliters.

That volume then has to be converted to whatever scale is printed on your barrel. Insulin syringes sold as U-100 are marked in units, and the unit scale maps to a fixed fraction of a milliliter that is printed on the packaging. Read your own syringe rather than assuming, because U-40 and U-100 barrels are marked differently and look similar.

The listings for CJC-1295 without DAC quote amounts of 0.1, 0.2 and 0.3 mg. Those are figures that appear in vendor material. They are not a recommendation from this site, not a starting point, and not a range. We publish them so the arithmetic has an input, nothing more.

One practical consequence of the table: a lower concentration means any given mass sits in a larger volume, which lands further up a syringe barrel and is easier to read precisely. A higher concentration compresses the same mass into a smaller mark. The arithmetic is identical either way. The difference is entirely in how well you can see what you drew.

The mixing step itself

Bacteriostatic water is water with a preservative added, which is what distinguishes it from sterile water in this context. Both are sold for laboratory use. The volume you choose determines the concentration and nothing else.

Wipe the rubber stopper before piercing it. Draw the water, then angle the needle so the stream runs down the inside glass wall rather than falling directly onto the powder. Peptides are physically fragile and a hard jet into dry powder is unnecessary force.

Do not shake the vial. Let it stand, or roll it gently between your fingers, until the solution goes clear. Shaking whips air through the liquid and creates foam that is difficult to measure around. If solids are still visible after the liquid has stopped moving, that is information about the vial, and this site cannot tell you what it means.

Once mixed, the vial holds liquid rather than powder and is normally kept refrigerated. We do not publish storage durations for this compound, because we do not hold data that would support one.

What this page does not answer

CJC-1295 without DAC is not approved by any regulator for human use. This site has no medical review process. It computes concentration and volume, and stops there.

We hold no reliable human pharmacokinetic data for this compound. That means this site makes no claim about its half life, how long it takes to clear, or whether repeat administration causes it to accumulate. Anything you read elsewhere assigning it a duration is not something we can verify, and we will not repeat it.

We also do not state what dose to use, how often, what effects to expect, what side effects occur, or whether any of it is safe. Those are clinical questions and they belong to a clinician who can see your situation. The division on this page tells you what is in a milliliter. It says nothing about whether that milliliter should exist.

What we do not know

We hold no reliable human pharmacokinetic data for CJC-1295 without DAC, so this site makes no claims about its half life, how long it takes to clear, or how it accumulates. The arithmetic below concerns concentration and volume only.

This page answers arithmetic and handling questions. It does not tell you what dose to take, what to expect, or whether anything is appropriate for you, and there is no medical review behind it.

Common questions

Does adding more bacteriostatic water reduce the strength of the peptide?

It reduces the concentration, not the total amount. A 10 mg vial contains the same 10 mg whether you add 1 mL or 3 mL. The water only determines how much peptide sits in each milliliter, which is why the same vial appears at 10 mg/mL and 3.33 mg/mL in the table.

How much water should I add to my vial?

There is no single correct volume, and this site does not recommend one. The vial and water combinations in the table are the ones commonly sold, and each gives a different concentration. The choice affects how easy a given mass is to read on your syringe, not how much peptide you own.

Can I use sterile water instead of bacteriostatic water?

They are different products. Bacteriostatic water contains a preservative; sterile water does not. The concentration arithmetic on this page is identical either way, since it depends only on volume. Which diluent is appropriate is not a question this site answers.

How long does CJC-1295 without DAC stay active after mixing?

We do not publish a figure for this. We hold no reliable human pharmacokinetic data for CJC-1295 without DAC, so this site makes no claim about half life, clearance or duration. The table here concerns concentration and volume only.

Why does the table show 0.67 and 3.33 instead of round numbers?

Those rows involve dividing by 3, which does not produce a terminating decimal. A 2 mg vial in 3 mL and a 10 mg vial in 3 mL are both rounded for display. The underlying values repeat.

Is CJC-1295 without DAC approved for human use?

No. It is not approved by any regulator for human use. This page exists to do concentration arithmetic accurately, not to suggest that the arithmetic should be applied.