GHRP / GHRH Stack
CJC-1295 + Ipamorelin
The CJC-1295 + ipamorelin combination is the most widely used growth-hormone-axis stack. CJC-1295 is a GHRH analogue; ipamorelin is a selective GH secretagogue. Co-administration produces a synergistic GH pulse larger than either component alone.
The GHRP / GHRH Stack stack combines 2 peptides — CJC-1295 and Ipamorelin. The reference reconstitution chart below shows each component's typical vial, BAC water, dose, and U-100 syringe units.
| Component | Vial | BAC water | Reference dose | U-100 units |
|---|---|---|---|---|
| CJC-1295 | 5 mg | 2 mL | 0.1 mg | 4 |
| Ipamorelin | 5 mg | 2 mL | 0.2 mg | 8 |
Per-component reference presets — when supplied as a single multi-peptide vial, follow your compounder's label. Adjust the calculator below for your vial.
GHRP / GHRH Stack dosage calculator
Switch between stack members using the chip strip. Each is preset to a typical vial and dose.
How to use this calculator›
- 1. Vial — the peptide amount printed on the vial, in milligrams.
- 2. BAC water — the bacteriostatic water added to the vial. More water means a lower concentration and a larger, easier-to-read draw.
- 3. Dose — the single dose being measured, in milligrams.
- 4. Syringe — the barrel being drawn into. The diagram rescales to that syringe, so the same dose sits at a different mark on a 0.3 mL barrel than on a U-100.
Educational reference only — not medical advice or a dosing recommendation.
Why these peptides together
GHRH (CJC-1295) and a ghrelin agonist (ipamorelin) act on different pituitary pathways. Co-stimulation typically produces a 2–3× GH pulse compared with either agent alone, while ipamorelin's selectivity keeps cortisol and prolactin near baseline.
Where researchers source this
Vendors below have been manually vetted for third-party COA practice and shipping reliability. Verify the current Certificate of Analysis on the vendor's product page before purchase.
Ascension PeptidesUSA-based research vendor (Castle Rock, Colorado) publishing a per-batch Certificate of Analysis library with public lot IDs, so a vial can be matched to its own COA before and after purchase. Recent HPLC purity 99.79–99.98% across the catalog. Ships from the US and carries the full GLP-1 reference range alongside repair, longevity and cosmetic compounds.
Visit Ascension Peptides →Affiliate link — we may earn a commission at no extra cost to you.
Particle PeptidesEU-based vendor (Slovakia, since 2015) shipping to EU, UK, and Switzerland. The only European supplier publishing all seven test parameters per batch (purity, identity, content, bioburden, endotoxins, heavy metals class 1 & 2). Manufacturer is cGMP / ISO 9001 / ISO 13485 compliant.
Visit Particle Peptides →Affiliate link — we may earn a commission at no extra cost to you.
How it's typically run
Reconstituted in either separate vials or as a co-formulated blend. Typical research protocol: 100 µg ipamorelin + 100 µg Mod-GRF 1-29 (or weekly CJC-1295 with DAC at 1–2 mg) two to three times daily, often timed pre-bed and post-workout.
Frequently asked questions
- Why combine CJC-1295 with ipamorelin?
- GHRH analogues and GH secretagogues act on different receptors and produce a larger combined GH pulse than either alone — without significantly raising cortisol or prolactin (unlike GHRP-2 or GHRP-6).
- DAC or no DAC?
- CJC-1295 with DAC has a half-life of ~6–8 days and is dosed weekly. Without DAC (Mod-GRF 1-29) has a 30-minute half-life and preserves a pulsatile profile when dosed multiple times daily.
PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.