The Exact CJC-1295 Dosage Chart: With DAC and Without (2026)

CJC-1295 without DAC is dosed at 100mcg per injection, taken once, twice or three times daily. CJC-1295 with DAC is dosed at 1 to 2mg a week, given in one shot or split into two. Both go by the same name, both arrive as a white cake of freeze-dried powder, and the right amount of one is the wrong amount of the other.

The gap is time. The short form is cleared from the blood in about half an hour, so every injection makes one burst of growth hormone and the daily dose is really a count of bursts. The DAC form latches onto albumin, the most common protein in blood, and keeps signalling for about a week, so its dose is counted by the week. Swap the schedules and both fail: the short form given weekly is gone within the hour, and the long form given daily keeps adding to doses that haven’t cleared.

Simms Research carries the short-acting form, 5mg of it paired with 5mg of ipamorelin in a single 10mg vial, and its batch certificate weighs the CJC-1295 separately from the ipamorelin.

CJC-1295 dosage chart

Both forms land on similar weekly totals, between about 0.7 and 2mg. What changes is the delivery: small amounts spread across the day for the short form, one larger amount carried through the week for the long one.

Runs last 8 to 12 weeks for either form, then a break of around four weeks. The two human trials of the DAC form ran for four and seven weeks (Teichman, Journal of Clinical Endocrinology and Metabolism, 2006).

CJC-1295 no DAC dosage per day

100mcg a shot, and 100 to 300mcg a day. For most adults that single shot works out to roughly 1mcg per kg of body weight, which is where the number comes from.

The short form copies GHRH, the brain’s own growth hormone-releasing hormone, and the dose rests on how the pituitary answers that hormone. Given to 73 healthy young men and women in amounts from 0.01 to 10mcg per kg, GHRH reached its biggest growth hormone response at 1mcg per kg, and more gave no more (Gelato, Journal of Clinical Endocrinology and Metabolism, 1984). A second study found peaks of about the same height anywhere from 0.33 to 10mcg per kg; the larger amounts only stretched the release out longer and brought on more flushing (Vance, Journal of Clinical Endocrinology and Metabolism, 1984).

That ceiling is why protocols hold each shot at 100mcg and raise the day’s total by adding shots. Each one makes its own burst, so a second injection adds a second release where a doubled first one mostly lengthens the same one. Most researchers begin with a single shot before sleep, add a morning one after a week or two, and keep a third, after training, for the heavier bodybuilding protocols. Some of those raise every shot to 200mcg, which buys a longer release more than a taller peak.

CJC-1295 with DAC dosage per week

1 to 2mg a week. The weekly rhythm comes from the peptide itself: in people, the DAC form has a half-life of 5.8 to 8.1 days (Teichman, Journal of Clinical Endocrinology and Metabolism, 2006).

Those numbers come from the two trials its developer ran in healthy volunteers between 21 and 61. The first gave single injections of 30, 60, 125 or 250mcg per kg; the second gave three weekly shots of 20 or 30mcg per kg, or a pair of 30 or 60mcg per kg shots two weeks apart. The researchers rated 30 and 60mcg per kg the best tolerated and saw the effect build from one injection to the next.

A bigger shot didn’t buy more. Healthy men given 60 or 90mcg per kg had the same rise in growth hormone and IGF-1 a week later, with no real difference between the two amounts (Ionescu, Journal of Clinical Endocrinology and Metabolism, 2006).

CJC-1295 DAC dosage per day

There isn’t one. A peptide with a week-long half-life given every day lands each new injection on most of the last six. Protocols that want a smoother level split the weekly amount in two, for example Monday and Thursday, and stop there.

How much CJC-1295 DAC should I take?

1mg a week to start, 2mg a week at the upper end. Set against body weight, that range sits at or under what the trials gave each week, and well under the single doses they called best tolerated.

Because one injection keeps working for about a week, the usual path is to stay at 1mg for the first three or four weeks and only then step up.

CJC-1295 dosage and timing

Without DAC, the main shot goes in just before sleep on an empty stomach. With DAC, any time of day works, as long as it falls on the same day each week.

The bedtime shot is timed to the body’s own schedule: in men, the release tied to the first stretch of deep sleep tends to be the day’s biggest, and on many nights the only sizeable one (Van Cauter, Growth Hormone and IGF Research, 2000). Food weighs on the GHRH side more than on the ghrelin side. In young volunteers, a glucose drink cut the growth hormone answer to GHRH by about 70% and a rise in blood fats cut it by about 85%, while the ghrelin-type signal held up better (Broglio, Clinical Endocrinology, 2002). So the last meal comes at least two hours before a shot and the next one about 30 minutes after.

The DAC form doesn’t make a burst to line up with sleep or meals. A week after a single injection, the overnight pulses kept their usual number and size and sat on a higher floor between them (Ionescu, Journal of Clinical Endocrinology and Metabolism, 2006), so its timing comes down to routine. A split dose goes in three or four days apart, and both forms are injected under the skin, most often into belly fat.

CJC-1295 dosage calculator

Units on the syringe depend on two things: how much CJC-1295 the vial holds and how much water went in. For the vials CJC-1295 is usually sold in, mixed at the volumes most researchers use:

Any other vial or volume goes through the peptide calculator, which turns a dose into syringe units. On a blend, enter only the CJC-1295 in the vial, 5mg here, so the math isn’t run on both peptides at once. A 2mg DAC vial is a single week at 2mg or two weeks at 1mg, while a 5mg no-DAC vial at two shots a day runs 25 days, inside the 28 a mixed vial keeps.

CJC-1295 side effects at protocol doses

Mostly a warm flush across the face, and it follows the dose. In the GHRH dose study, flushing and a sense of warmth came in about one in five people at 1mcg per kg and in nearly all at 10 (Gelato, Journal of Clinical Endocrinology and Metabolism, 1984). Those flushes were brief, under five minutes in the second study (Vance, Journal of Clinical Endocrinology and Metabolism, 1984).

In the DAC trials, the most frequent complaint was a passing reaction where the needle went in. Headaches, loose stools and flushing gathered in the 125 and 250mcg per kg groups, five to ten times a 2mg week for an average adult, and no serious reactions were reported (Teichman, Journal of Clinical Endocrinology and Metabolism, 2006). With either form, the extra growth hormone can bring some puffiness and tingling fingers in the first weeks, which tend to settle as the run goes on.

CJC-1295 on its own or with ipamorelin

Most of the short form sold today goes out already paired with ipamorelin, and that’s the only way Simms Research sells it: CJC-1295 noDAC / Ipamorelin, a 10mg vial holding 5mg apiece, for $78. The two peptides work on separate receptors of the same pituitary cells and together release more than either one does alone. In the blend the dose is counted per peptide, so a 100mcg CJC-1295 draw carries 100mcg of ipamorelin with it. The blend’s units, schedule and vial math are in the CJC-1295 Ipamorelin dosage chart, and CJC-1295 vs Ipamorelin weighs the pair against ipamorelin by itself.

For a GHRH-type peptide with nothing alongside it, Simms Research sells Sermorelin, the same 29-amino-acid chain without the four swaps that slow its breakdown. As the former prescription drug Geref it was given to children at 30mcg per kg under the skin at bedtime (Thorner, Journal of Clinical Endocrinology and Metabolism, 1996); the sermorelin dosage chart covers research dosing. The DAC form isn’t on the Simms shelf; the blend is built to fire two short signals at the same moment, which a week-long peptide can’t do.

Whichever form ends up in the vial, every dose on this page assumes the label is right. On the blend’s current certificate, from an independent ISO-certified lab in May 2026, CJC-1295 shows up as its own peak on the chromatogram, at about 11 minutes against ipamorelin’s 6.5, and is weighed on its own at 5.33mg against 5mg on the label, so every draw runs about 7% over the label. Purity came to 99.93% and both endotoxin runs passed. The certificate opens from the CJC-1295 noDAC / Ipamorelin lab results page, and the guide on how to read a peptide COA explains each line.

Frequently asked questions

How many mg of CJC-1295 a week?

For the short form, about 0.7mg on one nightly 100mcg shot, up to 2.1mg at three shots a day. For the DAC form, 1 to 2mg in total, given once or split in two.

Is the CJC-1295 dose different for women?

No. Women are, if anything, more sensitive to GHRH: they reached half their peak response at 0.2mcg per kg against 0.4 for men, and the peak itself was the same (Gelato, Journal of Clinical Endocrinology and Metabolism, 1984). The standard 100mcg covers both.

Where do you inject CJC-1295?

Under the skin, most often in the belly a couple of inches from the navel, or the outer thigh, moving the spot each time.

How much bacteriostatic water for 5mg of CJC-1295?

2 to 2.5mL. At 2.5mL, a 5-unit draw is 100mcg. Simms Research sells Research Water, $20 for 10mL, and How to Reconstitute Peptides walks through the mixing.

How long does mixed CJC-1295 last in the fridge?

28 days at 36 to 46°F (2 to 8°C). Sealed powder keeps in the fridge, or in the freezer for longer storage. More in Do Peptides Need to Be Refrigerated?

Is Mod GRF 1-29 just CJC-1295?

Yes, without the DAC: Mod GRF 1-29 is the short form under its older name. CJC-1295 with DAC is that chain plus the albumin-binding group, which is what stretches it from half an hour to about a week.

Is Simms Research legit?

On the points a buyer can check, it holds up. Its batch reports come from an independent ISO-certified lab and are posted on its lab results pages; an order in by 5 PM Eastern leaves that day; lost, stolen and damaged parcels are replaced or refunded under a written Free Delivery Guarantee; and a person picks up 855-592-8507 on weekdays.

Is there a discount code or affiliate link on this page?

No. There are no discount codes or affiliate links here. The full range is in the shop.