For informational and research purposes only. Not medical advice. Content is aggregated from public sources. Always consult a qualified healthcare provider.
Performance & Growth Hormone · Comparison

CJC-1295 + GHRP-6 Stack vs Melanotan II

A neutral, side-by-side comparison of two performance & growth hormone peptides — their mechanisms, dosing ranges, administration routes, side effects, and research evidence. For research and educational purposes only.

CJC-1295 + GHRP-6 StackMelanotan II
CategoryPerformance & Growth HormonePerformance & Growth Hormone
Also known asCJC GHRP-6 combination, GH releasing stack, GHRH GHRP combination, CJC-1295 GHRP-6MT-II, MTII, Cyclo[Nle4,D-Phe7]-α-MSH
EvidenceResearch-stageResearch-stage
Dosing rangeCJC-1295 100mcg + GHRP-6 100mcg–CJC-1295 200mcg + GHRP-6 300mcg mcg, 1–3x daily (pre-sleep, pre-workout, morning)250mcg–1000mcg mcg, Daily during loading phase; 2–3x weekly for maintenance
AdministrationSubcutaneous injectionSubcutaneous injection (most common), Intranasal (less effective, lower bioavailability)
Key side effectsStrong appetite stimulation (GHRP-6 dominant effect), Water retention, Tingling / numbness in extremities, Mild cortisol elevation (GHRP-6 is less selective than ipamorelin)Nausea (most common — especially first 30–60 minutes post-injection), Facial flushing, Spontaneous erections (males — often unwanted at higher doses), Fatigue / yawning post-injection
Cited sources2 references3 references

Key differences

  • Administration: CJC-1295 + GHRP-6 Stack — Subcutaneous injection; Melanotan II — Subcutaneous injection (most common), Intranasal (less effective, lower bioavailability).
  • Frequency: CJC-1295 + GHRP-6 Stack is typically 1–3x daily (pre-sleep, pre-workout, morning); Melanotan II is Daily during loading phase; 2–3x weekly for maintenance.
  • Research depth: this profile cites 2 sources for CJC-1295 + GHRP-6 Stack vs 3 for Melanotan II.

How each works

CJC-1295 + GHRP-6 Stack

The GHRH + GHRP combination synergistically amplifies GH pulse amplitude compared to either agent alone. CJC-1295 elevates baseline GH via GHRH receptor signaling at the pituitary; GHRP-6 triggers pulse timing via GHS-R1a. GHRP-6's potent appetite stimulation (significantly stronger than ipamorelin) makes this combination preferred in protocols targeting caloric surplus and mass accumulation.

Melanotan II

Melanotan II's broad melanocortin receptor agonism produces a constellation of effects across multiple systems. MC1R activation in melanocytes upregulates tyrosinase, the rate-limiting enzyme in melanin synthesis, producing UV-independent skin darkening. MC4R activation in the CNS and spinal cord drives sexual arousal and erectogenic effects more potent than most PDE5 inhibitors, and also produces appetite suppression and reduced food intake (the same pathway exploited by weight-loss drugs targeting the melanocortin system). MC3R activation contributes to energy homeostasis effects.

Read the full CJC-1295 + GHRP-6 Stack profileRead the full Melanotan II profile

This comparison aggregates public research and structured profile data for informational purposes only. It is not medical advice and does not recommend either compound for human use. Consult a qualified healthcare provider before considering any peptide.