CJC-1295 vs Ipamorelin
CJC-1295 and Ipamorelin are the two most commonly used growth hormone peptides. They work through different receptor systems and are synergistic when combined, which is why the CJC + Ipamorelin blend is so popular.
| Metric | CJC-1295 (no DAC) | Ipamorelin |
|---|---|---|
| Category | Growth Hormone | Growth Hormone |
| Default Unit | mcg | mcg |
| Vial Sizes | 2, 5, 10 | 2, 5, 10 |
| Dose Range | 100–300 mcg | 100–300 mcg |
| Frequency | 1–2× daily | 1–3× daily, before bed |
| Stability | 28 days | 28 days |
| Powder Storage | Freezer −20°C | Freezer −20°C |
| Reconstituted | Fridge 2–8°C | Fridge 2–8°C |
Mechanism of Action
CJC-1295 (no DAC) is a GHRH analog — it mimics growth hormone-releasing hormone, amplifying and sustaining GH pulses from the pituitary. Ipamorelin is a growth hormone secretagogue (GHS) — it initiates GH release by activating ghrelin receptors on the pituitary. Different triggers, complementary effects.
Why They Are Synergistic
Using a car analogy: Ipamorelin turns the key and starts the engine (initiates the GH pulse). CJC-1295 presses the gas pedal and keeps it pressed (amplifies and extends the pulse). Together, they produce 3–5× greater GH output than either alone. This is why the pre-mixed CJC + Ipa blend exists — the combination is the standard research protocol, not the exception.
Side Effect Profiles
Ipamorelin is the cleanest GHS available — minimal cortisol or prolactin increase, no significant hunger increase (unlike GHRP-6). CJC-1295 can cause flushing, head rush, or tingling at higher doses. Combined, side effects remain mild for most users. Both should be taken on an empty stomach to avoid blunting the GH pulse.
Dosing
Both are dosed in micrograms: 100–300 mcg each per injection. When using the pre-mixed blend, the dose refers to each component (so "200 mcg" means 200 mcg CJC + 200 mcg Ipa). Standard protocol: once daily before bed. Advanced: 2–3 times daily (wake, post-workout, bed).
⚖️ The Verdict
Don't choose between them — use both. The CJC + Ipamorelin combination is the gold standard GH peptide protocol. If you must pick one: Ipamorelin alone for a clean, simple GH boost; CJC-1295 alone if you want a stronger pulse but don't mind potential flushing. For best results, use the blend.
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