Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| GHRP-2 | Pentadeca Arginate (PDA) | |
|---|---|---|
| Category | Peptides | Peptides |
| Standard Dose | Research indicates 100-300 mcg administered 1-3 times daily via subcutaneous injection. | Research indicates 250-500 mcg administered 1-2 times daily via subcutaneous injection. |
| Timing | On empty stomach, bedtime administration preferred. Wait 2+ hours after last meal. | Administer on an empty stomach. Inject near site of injury for localized effect. |
| Cycle Duration | 8-16 week cycles. | 4-12 weeks depending on therapeutic target. |
| Evidence Level | moderate_human | animal_plus_anecdotal |
GHRP-2 (Growth Hormone Releasing Peptide-2) is a synthetic hexapeptide GHS-R1a agonist that is the most potent of the GHRP family for GH release. It stimulates pituitary GH secretion through the ghrelin receptor while also modulating hypothalamic GHRH and somatostatin pathways. GHRP-2 increases GH, cortisol, prolactin, and ACTH release, but with less appetite stimulation than GHRP-6. It also has demonstrated anxiolytic properties and sleep-promoting effects.
Research indicates 100-300 mcg administered 1-3 times daily via subcutaneous injection.
On empty stomach, bedtime administration preferred. Wait 2+ hours after last meal.
8-16 week cycles.
Pentadeca Arginate is a synthetic 15-amino acid peptide utilizing an arginate salt formulation of the BPC-157 sequence, designed to enhance nitric oxide production and promote angiogenesis. It stimulates collagen synthesis, enhances tissue repair through increased tensile strength, reduces inflammation via modulation of inflammatory cytokines, and accelerates cellular proliferation in tendon fibroblasts. The arginate salt form provides superior stability and bioavailability compared to traditional acetate formulations.
Research indicates 250-500 mcg administered 1-2 times daily via subcutaneous injection.
Administer on an empty stomach. Inject near site of injury for localized effect.
4-12 weeks depending on therapeutic target.
Take our free assessment to get personalized recommendations based on your health goals, current stack, and biomarkers.
Get Your Free Protocol →or take the assessment →