The questions below are the ones researchers ask most about storing, mixing and handling CJC-1295 + Ipamorelin. Each answer reflects the two sequences in the vial, CJC-1295 (no DAC), a modified growth hormone releasing factor (1-29), and ipamorelin, Aib-His-D-2-Nal-D-Phe-Lys-NH2, and links to the fuller page where there is one.
How long does CJC-1295 + Ipamorelin last in the fridge after mixing?
Mixed with bacteriostatic water and kept at 2 to 8 °C in the dark, the blend lasts 8 to 12 weeks under Vistara Labs’ handling guidance, with quality slowly fading from around week 6 to 8. No published or manufacturer stability figure exists for the mixed blend, so the window is general peptide guidance. The full table is on how long CJC-1295 + Ipamorelin lasts.
How long does unmixed CJC-1295 + Ipamorelin powder last?
A sealed lyophilised vial keeps long term in the fridge or at minus 20 °C. A chemical supplier rates solid ipamorelin at 4 years or more at minus 20 °C; no comparable rating was found for the no-DAC CJC-1295 fragment. Days at room temperature in transit do not harm the dry powder, so it ships without an ice pack.
Which half of the blend is less stable?
CJC-1295. Ipamorelin is five protected residues with no methionine, cysteine, asparagine, glutamine or aspartic acid (Raun et al., European Journal of Endocrinology, 1998). CJC-1295 is a 29-residue helix with three glutamines, two aspartates and two tyrosines, and related GRF analogues can gel at high concentration. Storage for the blend follows CJC-1295.
Is CJC-1295 no DAC the same as CJC-1295 with DAC?
They share the same 29-residue modified GRF (1-29) chain. The DAC form adds a lysine carrying a maleimide group that binds albumin, which gave a 5.8 to 8.1 day half-life in healthy adults (Teichman et al., Journal of Clinical Endocrinology and Metabolism, 2006). This blend and the single CJC-1295 (No DAC) vial contain the form without it.
What do you mix CJC-1295 + Ipamorelin with?
Bacteriostatic water, which is sterile water with 0.9% benzyl alcohol so a refrigerated vial can be accessed more than once. Both peptides carry a net positive charge at that pH, so the blend dissolves without acid or other solvents. The reasons are on the CJC-1295 + Ipamorelin solubility guide.
How much bacteriostatic water goes in a 10 mg CJC-1295 + Ipamorelin vial?
There is no single correct volume. With 2 mL the 10 mg vial gives 5 mg/mL of combined peptide; with 1 mL it gives 10 mg/mL. More water spreads the same amount of peptide through a larger volume, so write the chosen concentration on the vial. The tables and calculator are on the CJC-1295 + Ipamorelin reconstitution page.
Why is my CJC-1295 + Ipamorelin cloudy after mixing?
This blend is slower to homogenise than most, and early haze is often suspended particulate or trapped air that clears within 10 to 15 minutes of standing. Haze that persists, strands, particles or a tint that appears later point to warm storage, freezing or contamination, and the solution is discarded. More in why peptides gel or go cloudy.
Should CJC-1295 + Ipamorelin be dissolved in acetic acid?
No. Dilute acetic acid is used to add positive charge to peptides that resist water, but both peptides here are already positively charged in bacteriostatic water. Acid would also speed the slow chemistry at CJC-1295’s two aspartates. A vial that is slow to clear needs time at room temperature, not acid.
Can you freeze mixed CJC-1295 + Ipamorelin?
Not a vial that will be opened again, because repeated freezing and thawing promotes aggregation in peptide solutions, and the CJC-1295 helix is the kind of chain it affects. Laboratories that need frozen solution divide it into single-use aliquots and thaw each one once. Sealed powder can be frozen at minus 20 °C without concern.
Does CJC-1295 + Ipamorelin need to be kept out of the light?
Yes. CJC-1295 carries two tyrosines and a phenylalanine, and ipamorelin carries a naphthyl and a phenyl ring, all of which absorb ultraviolet light; tyrosine can oxidise and yellow under light. Keeping the vial boxed in the dark is standard practice, and it also keeps the vial away from warmth.
All products supplied by Vistara Labs are intended for laboratory research use only. They are not drugs, are not approved for human or veterinary use, and are not intended to diagnose, treat, cure or prevent any condition. Nothing on this page constitutes medical advice or guidance for use in humans.
