Ipamorelin + MK-677 Stack

Ipamorelin and MK-677 both stimulate GH release, but through different receptor pathways and timescales:

• Ipamorelin — A ghrelin receptor agonist (GHRP) that creates acute, high-amplitude GH pulses lasting 1–2 hours. Selective, with minimal cortisol or prolactin effects.
• MK-677 (Ibutamoren) — An oral ghrelin mimetic with a 24-hour half-life. It raises baseline GH and IGF-1 levels continuously, providing sustained anabolic signaling.

The combination gives you the best of both worlds: sharp GH pulses from ipamorelin (ideal for fat loss and acute recovery) layered on top of elevated baseline GH/IGF-1 from MK-677 (ideal for sustained muscle growth and anti-aging).

This stack uses two compounds with different administration routes:

• Ipamorelin — Subcutaneous injection. Provides the pulsatile GH spikes that drive lipolysis and acute tissue repair.
• MK-677 — Oral capsule or liquid. Provides sustained IGF-1 elevation and baseline GH support around the clock.

Some researchers add CJC-1295 (no DAC) to further amplify ipamorelin's GH pulse magnitude. This three-compound approach provides maximum GH output but increases complexity and cost.

Start MK-677 at 10 mg to assess tolerance, then increase to 25 mg over 2 weeks if well-tolerated. Taking MK-677 before bed minimizes the hunger spike and leverages the natural nocturnal GH surge. Ipamorelin timing should avoid overlap with MK-677 dosing by 2–3 hours for distinct pulse peaks.

Weeks 1–2: Significantly improved sleep from both compounds. Increased appetite from MK-677 (which can be leveraged during a bulk). Water retention may increase slightly as IGF-1 rises.

Weeks 3–8: Measurable body composition changes—increased lean mass, improved skin quality, faster recovery. Strength gains in the gym become noticeable. Fat loss occurs even at maintenance calories.

Weeks 8–16+: IGF-1 levels peak. Full recomposition effects are visible. Hair, skin, and nail quality improve significantly. MK-677 can be run for extended periods (6–12 months in research) unlike most peptides.

MK-677 is the more side-effect-prone compound in this stack. Common effects include increased appetite (significant in some subjects), water retention/bloating, lethargy, and mild numbness in extremities. Ipamorelin adds minimal additional side effects.

Critical precaution: MK-677 can significantly impact blood glucose. It may raise fasting glucose and reduce insulin sensitivity, especially at 25 mg doses. Monitor blood glucose regularly. Individuals with pre-diabetes or insulin resistance should avoid MK-677. Adding berberine or metformin (under medical supervision) can help mitigate glucose effects.

Quality control is especially important with MK-677, as the oral supplement market is rife with underdosed and contaminated products. Ascension Peptides offers verified-purity compounds:

• 99%+ purity for both ipamorelin and MK-677
• Independent third-party testing with published COAs
• Accurate dosing you can trust for consistent results

Don't gamble with grey-market MK-677. Source from Ascension Peptides for reliable research outcomes.