CJC-1295 vs Sermorelin

The Dose Guy’s verdict

Oct 27, 2026
5 sources

CJC-1295, the no-DAC form, paired with ipamorelin. It does sermorelin’s exact job, asking your pituitary for its own GH, but four amino-acid swaps keep each shot intact longer, so a smaller dose and fewer pins cover the same ground. Sermorelin still works: if a clinic prescribes it, run it with ipamorelin and do not lose sleep over it. Never run the two together, because they push the same button.

Which would I take?CJC-1295, the no-DAC kind.

How they differ

These are one drug, a generation apart. Sermorelin is the first 29 amino acids of GHRH, the signal your hypothalamus sends to make your pituitary release growth hormone. The no-DAC CJC-1295 people actually run, sold as Mod GRF 1-29, is that same chain with four swaps that resist the enzyme that chews natural GHRH up in minutes. Both are growth-hormone secretagogues, meaning your body makes the GH and the shot only asks for it. The swaps are the whole difference: more of each dose survives to do the work, and that is why the community moved on from sermorelin.

The DAC version is a different animal. It hooks onto albumin in your blood and keeps GH raised between pulses for days, the blur the forums call GH bleed. That buys you one or two pins a week instead of daily ones, and most people who try both forms settle on no-DAC. So when Reddit asks about CJC-1295 no DAC vs sermorelin, that is the real matchup, and no-DAC wins it on chemistry and convenience, not on a trial.

The common search pits sermorelin against CJC-1295 with ipamorelin, which is not a fair fight, because ipamorelin is the other half of the job. Either GHRH analog primes the pituitary; ipamorelin, a GHRP, pulls the trigger, and the pair gives a bigger pulse than either alone. Swap sermorelin for CJC-1295 in that stack and keep everything else. If tesamorelin is the third name in your search, it is the belly-fat one with real trials, and neither of these beats it there. For muscle growth or general fat loss, neither has a trial; whatever they add rides on training and diet, so the edge goes to the one you will actually pin every night.

What the research shows

Nobody has tested these two against each other, and the trials that exist barely touch how either one is run today:

No head-to-head trial of CJC-1295 against sermorelin exists. The no-DAC CJC-1295 most people run has never been in a human study at all.as of Aug 2026

One sub-q injection of CJC-1295 with DAC raised mean GH two- to tenfold for at least 6 days and IGF-I 1.5- to threefold for 9 to 11 days.JCEM 2006 · RCT · healthy adults

One week after a single dose, basal trough GH was 7.5-fold higher and IGF-I was up 45%, while GH pulse frequency and magnitude were unchanged. That raised trough is the bleed.JCEM 2006 · healthy men

A 10-hour sermorelin infusion at 1 mcg/kg per hour in four healthy men produced GH pulses up to 80 mU/L throughout.Clin Endocrinol 1986 · healthy men · n=4

In testosterone-treated men, sermorelin with GHRP-2 and GHRP-6 at 100 mcg each, three times daily, raised IGF-1 from 159.5 to 239.0 ng/mL over a mean 134 days. There is no way to isolate sermorelin’s share.AJMH 2017 · retrospective · n=14

Different molecules, different men, different decades. The CJC-1295 numbers are on a weekly molecule most people skip, and the sermorelin numbers are an IV drip and a three-drug combination. My pick rests on the chemistry and years of community mileage, not on a trial.

How people run them

Both run the same way: sub-q, on an empty stomach about two hours after your last meal, pre-bed as the anchor shot to ride your natural overnight GH surge, and ipamorelin drawn into the same syringe. What differs is the count. No-DAC CJC-1295 runs at about 100 mcg, pre-bed at minimum, with a morning or pre-workout shot added on the full stack. Sermorelin runs at 200–300 mcg, two or three times a day, because it clears faster. More is not better on either; the receptor saturates at a modest dose, so showing up every night beats milking each shot.

Switching from sermorelin is the easy move. Take CJC-1295 at your next scheduled shot, same slots, same ipamorelin, no washout and no overlap. Drop to 100 mcg; never carry the sermorelin number over. Going back to sermorelin, usually because a clinic is the supply, works the same way at 200–300 mcg. If you move to the DAC form instead, start it the day after your last daily shot and stop the daily ones, since it covers the whole week.

Do not stack the two. Two GHRH analogs on one pituitary add pins, not GH.

CJC-1295 no-DAC100 mcg, 1–3x/dayPre-bed at minimum, empty stomach, same syringe as ipamorelin.

Sermorelin200–300 mcg, 2–3x/dayHigher dose and more pins because it clears faster; pre-bed is the one to keep.

Serm to CJC100 mcg, next slotNo washout, no overlap; ipamorelin stays exactly where it was.

CJC-1295 DAC1–2 mg/wkOne or two pins a week and a blurrier pulse; most people prefer no-DAC.

The partner+ ipamorelinWith either one; the GHRH primes, the GHRP fires.

Side effects, side by side

Close to identical at the doses people run; the DAC form is what changes the picture:

commonFlushing or a head-rush right after the shot on both, brief and harmless.

commonInjection-site irritation, more of it on sermorelin simply because you pin more often.

commonWater retention and tingling or numb hands when GH runs high, reported more on CJC-1295, most of all on the DAC form’s days-long elevation. Ease back if they show.

monitorGH nudges blood sugar and insulin sensitivity over time on both. Worth an eye if yours runs borderline.

unknownNo long-term adult safety data on either. CJC-1295’s controlled record stops at 49 days; sermorelin’s history is mostly in children.