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GHRP-2 5mg Dosage Protocol | PeptideDosages.com

GHRP-2 (5 mg Vial) Dosage Protocol GHRP-2 Dosage Chart GHRP-2 is dosed at 100 mcg–200 mcg daily via subcutaneous injection in educational protocols. A 5 mg vial reconstituted with bacteriostatic water yields about 1.67 mg/mL. This information is for research a

Written by Peptide Therapy Guide Editorial Team
For education only

This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.

GHRP-2 (5 mg Vial) Dosage Protocol

GHRP-2 Dosage Chart

GHRP-2 is dosed at 100 mcg–200 mcg daily via subcutaneous injection in educational protocols. A 5 mg vial reconstituted with bacteriostatic water yields about 1.67 mg/mL. This information is for research and educational use only.

Reconstitute: Add 3.0 mL bacteriostatic water → ~1.67 mg/mL concentration.

Typical daily range: 100–300 mcg once daily subcutaneously.

Easy measuring: At 1.67 mg/mL, 1 unit = 0.01 mL ≈ 16.7 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).

GHRP-2 (Growth Hormone-Releasing Peptide-2) is a synthetic hexapeptide that stimulates potent, dose-dependent growth hormone release by activating ghrelin receptors[1]. Clinical studies predominantly employ once-daily subcutaneous administration to elicit robust pulsatile GH release while minimizing receptor desensitization[2][3]. This educational protocol presents a practical gradual titration approach with clear insulin-syringe measurements.

Research context: For evidence on mechanisms, human and preclinical research, limitations, and safety, read What Is GHRP-2? Mechanism, Benefits, Risks, and Alternatives.

Standard / Gradual Approach (3 mL = ~1.67 mg/mL)

Weeks 1–2

100 mcg

6 units (0.06 mL)

Weeks 3–4

150 mcg

9 units (0.09 mL)

Weeks 5–8

200 mcg

12 units (0.12 mL)

Weeks 9–12

Weeks 13–16

Frequency: Inject once daily subcutaneously. This once-daily schedule balances efficacy with receptor recovery time, avoiding the rapid attenuation seen with frequent dosing[3]. Administering in the evening may capitalize on nocturnal GH rhythms. For ≤10-unit (≤0.10 mL) administrations, consider 30- or 50-unit insulin syringes for improved readability.

Reconstitution Steps

Draw 3.0 mL bacteriostatic water with a sterile syringe.

Inject slowly down the vial wall; avoid foaming.

Gently swirl or roll until completely dissolved (do not shake).

Label and refrigerate at 2–8 °C (35.6–46.4 °F), protected from light.

Supplies Needed

Plan based on an 8–16 week daily protocol with gradual titration.

Peptide Vials (GHRP-2, 5 mg each):

8 weeks ≈ 2 vials

12 weeks ≈ 4 vials

16 weeks ≈ 5 vials

Insulin Syringes (U-100):

Per week: 7 syringes (1/day)

8 weeks: 56 syringes

12 weeks: 84 syringes

16 weeks: 112 syringes

Bacteriostatic Water (10 mL bottles): Use ~3.0 mL per vial for reconstitution.

8 weeks (2 vials): 6 mL → 1 × 10 mL bottle

12 weeks (4 vials): 12 mL → 2 × 10 mL bottles

16 weeks (5 vials): 15 mL → 2 × 10 mL bottles

Alcohol Swabs: One for the vial stopper + one for the injection site each day.

Per week: 14 swabs (2/day)

8 weeks: 112 swabs → recommend 2 × 100-count boxes

12 weeks: 168 swabs → recommend 2 × 100-count boxes

16 weeks: 224 swabs → recommend 3 × 100-count boxes

Connected reading

Helpful context for this guide

Source-derived material selected through this article’s indexed topics.

Related questions

01Davunetide — frequently asked questions

Wipe the stopper with an alcohol swab, then inject your bacteriostatic water slowly down the inside wall of the vial. Let it sit and gently swirl until dissolved — never shake. Store the mixed vial in the refrigerator and draw doses with an insulin syringe. Use the calculator above to turn any dose into syringe units. There is no single correct amount — more water simply spreads the same 5 mg of peptide across a larger volume, which makes small doses easier to measure accurately. 1 to 3 mL per vial is typical. Enter your chosen volume in the calculator above to see the resulting concentration and syringe units. On a U-100 insulin syringe, 100 units equal 1 mL, so 1 unit equals 0.01 mL. The calculator above converts your draw volume into these units automatically so you can measure without doing the math by hand. Keep the reconstituted vial refrigerated at roughly 2 to 8 degrees Celsius, away from light, and avoid freezing it. Reconstituted research peptides are generally used within a few weeks. Always follow the specific guidance supplied with your product. Divide the vial strength of 5 mg by the amount you use per injection. The calculator above reports this as "doses per vial" the moment you enter a dose. No. Davunetide is sold strictly for laboratory and research purposes and is not approved by the FDA or other regulators for human use. Everything on this page is research information, not medical advice — consult a licensed healthcare professional before any use.

Source: dosagepeptide.com ↗
02Thymogen — frequently asked questions

Wipe the stopper with an alcohol swab, then inject your bacteriostatic water slowly down the inside wall of the vial. Let it sit and gently swirl until dissolved — never shake. Store the mixed vial in the refrigerator and draw doses with an insulin syringe. Use the calculator above to turn any dose into syringe units. There is no single correct amount — more water simply spreads the same 10 mg of peptide across a larger volume, which makes small doses easier to measure accurately. 1 to 3 mL per vial is typical. Enter your chosen volume in the calculator above to see the resulting concentration and syringe units. On a U-100 insulin syringe, 100 units equal 1 mL, so 1 unit equals 0.01 mL. The calculator above converts your draw volume into these units automatically so you can measure without doing the math by hand. Keep the reconstituted vial refrigerated at roughly 2 to 8 degrees Celsius, away from light, and avoid freezing it. Reconstituted research peptides are generally used within a few weeks. Always follow the specific guidance supplied with your product. Divide the vial strength of 10 mg by the amount you use per injection. The calculator above reports this as "doses per vial" the moment you enter a dose. No. Thymogen is sold strictly for laboratory and research purposes and is not approved by the FDA or other regulators for human use. Everything on this page is research information, not medical advice — consult a licensed healthcare professional before any use.

Source: dosagepeptide.com ↗
03IGF-1 DES — frequently asked questions

Wipe the stopper with an alcohol swab, then inject your bacteriostatic water slowly down the inside wall of the vial. Let it sit and gently swirl until dissolved — never shake. Store the mixed vial in the refrigerator and draw doses with an insulin syringe. Use the calculator above to turn any dose into syringe units. There is no single correct amount — more water simply spreads the same 1 mg of peptide across a larger volume, which makes small doses easier to measure accurately. 1 to 3 mL per vial is typical. Enter your chosen volume in the calculator above to see the resulting concentration and syringe units. On a U-100 insulin syringe, 100 units equal 1 mL, so 1 unit equals 0.01 mL. The calculator above converts your draw volume into these units automatically so you can measure without doing the math by hand. Keep the reconstituted vial refrigerated at roughly 2 to 8 degrees Celsius, away from light, and avoid freezing it. Reconstituted research peptides are generally used within a few weeks. Always follow the specific guidance supplied with your product. Divide the vial strength of 1 mg by the amount you use per injection. The calculator above reports this as "doses per vial" the moment you enter a dose. No. IGF-1 DES is sold strictly for laboratory and research purposes and is not approved by the FDA or other regulators for human use. Everything on this page is research information, not medical advice — consult a licensed healthcare professional before any use.

Source: dosagepeptide.com ↗
04Ecnoglutide — frequently asked questions

Wipe the stopper with an alcohol swab, then inject your bacteriostatic water slowly down the inside wall of the vial. Let it sit and gently swirl until dissolved — never shake. Store the mixed vial in the refrigerator and draw doses with an insulin syringe. Use the calculator above to turn any dose into syringe units. There is no single correct amount — more water simply spreads the same 10 mg of peptide across a larger volume, which makes small doses easier to measure accurately. 1 to 3 mL per vial is typical. Enter your chosen volume in the calculator above to see the resulting concentration and syringe units. On a U-100 insulin syringe, 100 units equal 1 mL, so 1 unit equals 0.01 mL. The calculator above converts your draw volume into these units automatically so you can measure without doing the math by hand. Keep the reconstituted vial refrigerated at roughly 2 to 8 degrees Celsius, away from light, and avoid freezing it. Reconstituted research peptides are generally used within a few weeks. Always follow the specific guidance supplied with your product. Divide the vial strength of 10 mg by the amount you use per injection. The calculator above reports this as "doses per vial" the moment you enter a dose. No. Ecnoglutide is sold strictly for laboratory and research purposes and is not approved by the FDA or other regulators for human use. Everything on this page is research information, not medical advice — consult a licensed healthcare professional before any use.

Source: dosagepeptide.com ↗
05Teduglutide — frequently asked questions

Wipe the stopper with an alcohol swab, then inject your bacteriostatic water slowly down the inside wall of the vial. Let it sit and gently swirl until dissolved — never shake. Store the mixed vial in the refrigerator and draw doses with an insulin syringe. Use the calculator above to turn any dose into syringe units. There is no single correct amount — more water simply spreads the same 5 mg of peptide across a larger volume, which makes small doses easier to measure accurately. 1 to 3 mL per vial is typical. Enter your chosen volume in the calculator above to see the resulting concentration and syringe units. On a U-100 insulin syringe, 100 units equal 1 mL, so 1 unit equals 0.01 mL. The calculator above converts your draw volume into these units automatically so you can measure without doing the math by hand. Keep the reconstituted vial refrigerated at roughly 2 to 8 degrees Celsius, away from light, and avoid freezing it. Reconstituted research peptides are generally used within a few weeks. Always follow the specific guidance supplied with your product. Divide the vial strength of 5 mg by the amount you use per injection. The calculator above reports this as "doses per vial" the moment you enter a dose. No. Teduglutide is sold strictly for laboratory and research purposes and is not approved by the FDA or other regulators for human use. Everything on this page is research information, not medical advice — consult a licensed healthcare professional before any use.

Source: dosagepeptide.com ↗
Research context

Read sources and limitations before applying a claim.

Safety and Tolerability in the Research Setting

Safety and efficacy are separate questions, and it is entirely possible for a compound to be well tolerated while remaining unproven for the condition of interest. That is the current situation for NAD+ precursors in Parkinson’s disease. The short-term tolerability data, particularly for oral nicotinamide riboside, are reassuring within the limits of the trials conducted, but they are not a statement about long-term safety, about frail or elderly populations over years, or about drug interactions in people taking multiple Parkinson’s medications. The most directly relevant safety dataset is NR-SAFE, which was explicitly designed to probe tolerability at a high dose. Over four weeks, 3,000 mg of NR daily produced only mild adverse events, with no moderate or severe events and no significant excess over placebo; the most frequently reported events in the NR arm included extrapyramidal symptoms, headache, tremor, muscle cramps, fatigue, nausea, and dyspepsia, several of which overlap with the underlying disease and its treatment.2 The absence of painful flushing is notable because flushing is a classic dose-limiting effect of nicotinic acid (niacin); NR and nicotinamide generally avoid the flushing that niacin causes, which is one reason they are favored for chronic dosing. The lower-dose NADPARK trial similarly reported that 1,000 mg daily was well tolerated over 30 days.1 Broader supplement-safety literature on NR in non-Parkinson populations has generally supported tolerability at commonly studied doses, and NMN has likewise been reported to raise blood NAD+ safely in short studies of healthy adults.13 These reassurances come with substantial caveats that a careful reader should hold in mind. First, the trials are small and short. Twenty participants over four weeks, or thirty over one month, cannot detect uncommon adverse events or effects that only emerge with months to years of exposure, which is exactly the exposure that disease modification would require. Second, the populations were selected: early-stage, often newly diagnosed patients able to participate in a trial, not the full spectrum of advanced disease, multimorbidity, and polypharmacy seen in practice. Third, theoretical concerns exist that have not been resolved in humans. Because NAD+ metabolism intersects with cell proliferation and with the kynurenine pathway, and because some preclinical work has raised tissue-specific concerns about chronic high-dose precursor exposure (for example, questions about metabolite accumulation with sustained oral NMN in animal models), long-term safety cannot be assumed from short-term tolerability.13 Fourth, methylation load is a plausible consideration: clearance of excess nicotinamide consumes methyl groups, and the metabolic consequences of chronically high precursor intake over years are not well characterized in this population. There is also the matter of source and quality. In a research context, the identity, purity, and endotoxin status of a compound materially affect both the validity of an experiment and the safety of any handling. Injectable NAD+ preparations used outside regulated trials vary widely in provenance, and intravenous NAD+ administration in particular has been associated with infusion-related discomfort (nausea, chest tightness, flushing) that is typically managed by slowing the infusion rate but underscores that route and formulation matter.4 None of this constitutes clinical guidance. The appropriate summary is that oral NR appears well tolerated in the short term at the doses tested in early Parkinson’s trials, that other precursors and routes have thinner safety records, and that long-term safety in Parkinson’s disease specifically remains unestablished pending completed, published, adequately long trials.

Source: dosagepeptide.com ↗

Study Design and Tracking

Define target area, measured amount, frequency, duration, and primary endpoint before the first observation. Use consistent lighting, camera position, facial expression, and time of day for images. Keep other skincare products and cosmetic procedures consistent or document each change. Record dispensing mass or volume so each application is reproducible. Track redness, itching, burning, swelling, dryness, eye exposure, pH drift, and product separation.

Source: peptidedosages.com ↗
Practical and safety references

These excerpts are educational, not personalised medical instructions.

How-to reference

How to convert mcg to mg (and back)

Because the factor is exactly 1000, every conversion is a decimal-point move of three places — no calculator strictly required once you see the pattern: mcg → mg: divide by 1000, i.e. move the decimal point three places to the left. 500 mcg → 0.5 mg; 100 mcg → 0.1 mg; 1500 mcg → 1.5 mg. mg → mcg: multiply by 1000, i.e. move the decimal point three places to the right. 0.5 mg → 500 mcg; 2 mg → 2000 mcg; 1.25 mg → 1250 mcg. The tool above does the same move for you and trims trailing zeros, so you can paste in any value — whole or fractional — and read the exact counterpart.

Source: dosagepeptide.com ↗
Dosage reference

Vilon (20mg Vial) Dosage Protocol

Khavinson immune/thymus dipeptide bioregulator (KE) — research-only; not approved, benefits unproven.

Source: dosagepeptide.com ↗
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Peptide Therapy Guide Editorial Team

Editorial team for Peptide Therapy Guide.

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