Comparison tool
Compare peptides
Pick up to three compounds. Useful for deciding whether two peptides in a stack actually do different things, or whether you're paying twice for the same pathway.
Select up to three (1/3)
Comparison results
| Attribute | |
|---|---|
| Category | Growth hormone |
| Evidence grade | Moderate |
| Also known as | Modified GRF 1-29, DAC:GRF |
| Mechanism | Binds pituitary GHRH receptors to increase both the amplitude of GH pulses and total GH secretion. The DAC (drug affinity complex) version binds serum albumin, extending the half-life from minutes to about a week. |
| Key benefits | Elevated GH and IGF-1 across the dosing window · Improved sleep depth reported by most users · Supports lean mass retention and fat oxidation |
| Side effects | Water retention · Tingling or numbness in hands · Head rush and flushing after injection · Elevated fasting glucose at higher doses |
| Half-life | ~30 minutes without DAC; ~6–8 days with DAC |
| Administration | Subcutaneous injection, typically before bed on an empty stomach |
| Dosing overview | 100 mcg (no-DAC) 1–3× daily, or 1–2 mg weekly for the DAC version |
| Storage | Refrigerate reconstituted product; protect from light and avoid shaking |
| Legal status | Not FDA-approved. Prescribed off-label by some clinics; banned in sport. |
Dosing figures reflect published literature and commonly reported community protocols. They are informational only.
Head-to-head comparisons
Each comparison below is its own page with the full attribute table, key differences and shared attributes for that pairing. They are grouped by the category the compounds are indexed under.
GLP-1 receptor agonists
Direct comparisons between the incretin-based compounds most often searched against one another.
Metabolic and GLP-1 compounds
Compounds indexed under metabolic use, including the GLP-1 receptor agonists and the smaller fat-metabolism peptides often searched alongside them.
Recovery and tissue repair
Pairings between compounds indexed for healing, connective tissue and post-injury recovery.
Growth-hormone axis
Secretagogues and releasing peptides that act on growth-hormone signalling, compared with each other and with adjacent compounds.
Longevity and mitochondrial
Compounds indexed under longevity, cellular and mitochondrial function.
Sexual health
Melanocortin and related compounds indexed for sexual-health use.