GHRP-6 dosage chart
10 mg Vial
GHRP-6 is dosed at 100 mcg–300 mcg daily via subcutaneous injection in educational protocols. A 10 mg vial reconstituted with bacteriostatic water yields about 3.33 mg/mL. This information is for research and educational use only.
- Reconstitute
- Add 3.0 mL bacteriostatic water → ~3.33 mg/mL concentration.
- Typical daily range
- 300–900 mcg total (split into 3 doses with gradual titration).
- Easy measuring
- At 3.33 mg/mL, 1 unit = 0.01 mL ≈ 33.3 mcg on a U-100 insulin syringe.
- Storage
- Lyophilized: freeze at −20 °C (−4 °F); after reconstitution, refrigerate at 2–8 °C (35.6–46.4 °F) and use within 7 days.
Dosing schedule
| Week/Phase | Dose per Injection (mcg) | Units (per injection) (mL) |
|---|---|---|
| Weeks 1–2 | 100 mcg | 3 units (0.03 mL) |
| Weeks 3–4 | 200 mcg | 6 units (0.06 mL) |
| Weeks 5–12 | 300 mcg | 9 units (0.09 mL) |
Reconstitution steps
- 1Draw 3.0 mL bacteriostatic water with a sterile syringe.
- 2Inject slowly down the vial wall to avoid foaming; do not shake.
- 3Gently swirl or roll the vial until the powder is completely dissolved.
- 4Label with date and concentration, then refrigerate at 2–8 °C (35.6–46.4 °F), protected from light.
- 5Use within 7 days of reconstitution for optimal potency.
Important Notes
Practical considerations for consistency and safety.
- Use new sterile insulin syringes for each injection; dispose in a sharps container.
- Rotate injection sites systematically (abdomen, thighs, upper arms) to reduce lipohypertrophy and local irritation.
- Inject slowly and wait a few seconds before withdrawing the needle.
- GHRP-6 may increase appetite in some users due to its ghrelin-mimicking properties.
- Document daily doses, timing, and sites to maintain consistency throughout the cycle.
How This Works
GHRP-6 functions as a synthetic ghrelin mimetic by binding to the growth hormone secretagogue receptor (GHS-R1a) in the pituitary gland and hypothalamus. This activation triggers acute, pulsatile growth hormone release from somatotroph cells while simultaneously reducing somatostatin’s inhibitory brake on GH secretion. Unlike continuous GH administration, GHRP-6 maintains physiological feedback controls—as GH and IGF-1 levels rise, endogenous somatostatin increases to prevent excessive elevation, keeping GH pulses within normal physiologic ranges.
Beyond its endocrine effects, GHRP-6 exhibits cytoprotective properties through interactions with the CD36 receptor on immune and muscle cells. This secondary pathway activates cell-survival signaling cascades (such as PI3K/Akt) that help protect tissues from oxidative stress and inflammation, explaining many of GHRP-6’s observed tissue-protective benefits in preclinical models including cardioprotection, neuroprotection, and anti-fibrotic effects.
Potential Benefits & Side Effects
Observations from clinical and preclinical literature.
- Muscle Growth & Fat Loss: Elevated GH and IGF-1 levels support increased lean body mass and reduced fat mass over time.
- Enhanced Recovery: Improved sleep architecture (increased slow-wave sleep) and faster tissue repair.
- Appetite Stimulation: May increase hunger due to ghrelin receptor activation, potentially beneficial for weight gain goals.
- Tissue Protection: Preclinical studies show cytoprotective effects including reduced scar formation, cardioprotection, and neuroprotection.
- Joint & Connective Tissue Health: May support collagen synthesis and connective tissue repair through elevated IGF-1.
- Transient mild increases in cortisol and ACTH (typically not clinically significant).
- Increased appetite and potential water retention.
- Occasional injection-site reactions (redness, itching, mild swelling).
- Possible transient dizziness or flushed feeling immediately after injection due to rapid GH spike.
- Generally well-tolerated in human trials at research doses with no major safety concerns reported.
Lifestyle Factors
Complementary strategies for optimizing outcomes.
- Nutrition: Maintain adequate protein intake (1.6–2.2 g/kg body weight) to support anabolic processes. Time carbohydrate and fat intake away from injections to maximize GH release.
- Training: Combine resistance training with moderate cardiovascular activity to leverage elevated GH/IGF-1 for muscle growth and fat oxidation.
- Sleep: Prioritize 7–9 hours of quality sleep; GHRP-6’s effects on sleep architecture may enhance recovery.
- Hydration: Maintain proper hydration to support metabolic processes and minimize water retention.
- Stress Management: Chronic stress can interfere with GH secretion; incorporate stress-reduction techniques.
Injection Technique
General subcutaneous guidance from clinical best-practice resources.
- Preparation: Clean the vial stopper and injection site with alcohol swabs; allow to dry completely.
- Drawing the dose: Use a new sterile insulin syringe; draw the calculated units and check for air bubbles.
- Site selection: Rotate between abdomen (2+ inches from navel), outer thighs, and upper arms. Avoid repeatedly injecting the same spot.
- Technique: Pinch a skinfold; insert needle at 45–90° angle into subcutaneous tissue (angle depends on needle length and body fat).
- Administration: Do not aspirate for subcutaneous injections. Inject slowly and steadily; hold for a few seconds before withdrawing.
- Disposal: Immediately dispose of used syringes and needles in a puncture-proof sharps container. Never reuse needles.
important-note
This content is intended for therapeutic educational purposes only and does not constitute medical advice, diagnosis, or treatment. GHRP-6 is intended for research purposes only. Consult qualified healthcare professionals before beginning any peptide protocol. Individual responses may vary, and proper medical supervision is essential for safety and efficacy monitoring.
GHRP-6 dosage FAQs
How much bacteriostatic water do you use to reconstitute GHRP-6?
Add 3.0 mL bacteriostatic water → ~3.33 mg/mL concentration. for a 10 mg Vial vial. Add the water slowly against the inside wall of the vial and swirl — never shake — until the powder fully dissolves.
What does the GHRP-6 dosing schedule look like?
Weeks 1–2 — 100 mcg — 3 units (0.03 mL); Weeks 3–4 — 200 mcg — 6 units (0.06 mL); Weeks 5–12 — 300 mcg — 9 units (0.09 mL). The full table above lists every step with matching syringe units.
What are the mixing steps for GHRP-6?
Draw 3.0 mL bacteriostatic water with a sterile syringe. Inject slowly down the vial wall to avoid foaming; do not shake. Gently swirl or roll the vial until the powder is completely dissolved.
How should reconstituted GHRP-6 be stored?
Storage: Lyophilized: freeze at −20 °C (−4 °F); after reconstitution, refrigerate at 2–8 °C (35.6–46.4 °F) and use within 7 days..
How many insulin syringe units equal a GHRP-6 dose?
Units depend on the water volume you used. Divide your target dose by the vial concentration to get millilitres, then multiply by 100 — 1 unit on a U-100 insulin syringe is 0.01 mL. The Spartan Peptides reconstitution calculator does this conversion for you.
Is GHRP-6 approved for human use?
No. GHRP-6 is sold and referenced strictly as a research chemical. Nothing on this page is medical advice and the material is not for human consumption.
Educational and research information only. Not medical advice, not for human consumption. Values are reference figures — always verify your own math with the reconstitution calculator.
On any insulin syringe, 1 unit = 0.01 mL, so unit counts above hold across brands.

