GHRP-2 Dosage Calculator & Research Doses

1Set Up Your Mix

0.833 mg/mL · 833 mcg/mL

1. Pick your peptide

2. How much peptide is in the vial? It's printed on the label — usually something like 5 mg

3. How much water are you adding? More water makes each dose easier to measure

4. How much do you want per dose?

All answers assume a standard 1 mL U-100 syringe, where 1 unit = 0.01 mL. That is the usual insulin syringe and the one every number here is based on.

Your Answer — GHRP-2Your Answer

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24Draw To This Line

0.24That's This Many mL

25Doses In The Vial

5 mg ÷ 6 mL = 0.833 mg/mL → 200 mcg ÷ 0.833 mg/mL = 0.24 mL → × 100 = 24 units—

Looks good. Draw to 24 units on a 1 mL syringe. That is an easy amount to measure, and this vial gives you 25 doses.

2Week-By-Week Plan — GHRP-2

Start low, work up

When	Dose	How Often	How Many mL	Draw To	Number Of Doses
Low reported	100 mcg	1–3× daily	0.12 mL	12 u	50 doses
Standard	200 mcg	1–3× daily	0.24 mL	24 u	25 doses
Upper reported	300 mcg	1–3× daily	0.36 mL	36 u	16 doses
Diagnostic dose	100 mcg single	diagnostic	Set by body weight — can't be turned into a single amount to draw

Weeks until the top dose

4 weeks

Peptide used getting there

4.2 mg

Vials you'll need

1 × 5 mg

Once you're at the top dose

8.4 mg / 4 wk · 1.68 vials

Where this plan came from

Built from this peptide's dose range

Where this came from: Built from the doses listed for this peptide below — start at the lowest and step up, using the studies cited on this page. Nobody publishes a week-by-week plan for this peptide, so we built one: the doses are the researched ones shown below, and we simply put them in order from lowest to highest. Treat it as a starting point, not an official schedule.

3Common Doses — GHRP-2

worked out for your mix

Level	Dose	How Often	How Many mL	Draw To	Doses In Vial
Weeks 1–2	100 mcg	daily	0.12 mL	12 u	14	1.4 mg
Weeks 3–4	200 mcg	daily	0.24 mL	24 u	14	2.8 mg
Week 5 onward per 4 weeks from here on	300 mcg	daily	0.36 mL	36 u	28	8.4 mg

Please read this. These numbers come from published research. They are here as reference, not as instructions. A lot of them come from lab studies rather than studies in people, and some of these peptides have never been given to a person at all.

About GHRP-2About This Peptide

GH Secretagogue

Also known as

Pralmorelin, KP-102

Class

GH Secretagogue

Route

Subcutaneous

Half-life

~30 min

Evidence tier

Clinical

A growth hormone-releasing peptide with an approved diagnostic use in Japan for GH deficiency testing. Less receptor-selective than ipamorelin — raises prolactin and cortisol somewhat.

Buy GHRP-2this peptide

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Where These Numbers Come From

Clinical — Human trial or approved-label dosing published

GHRP-2 as a diagnostic agent for growth hormone deficiency Chihara K, et al. Journal of Clinical Endocrinology & Metabolism, 2007

Human diagnostic dosing and GH response curves.

Find on PubMed ↗

Growth hormone-releasing peptides — mechanism and clinical potential Bowers CY. Cellular and Molecular Life Sciences, 1998

Review by the researcher who developed the GHRP series.

Find on PubMed ↗

Newest Studies — —

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Not reviewed by us. This list is pulled straight from Europe PMC as papers are published. Nobody has checked whether these are any good, or whether they change anything above. The dose numbers on this page only ever change after a person reviews the evidence.

Research Use Only — Confirm to Continue

GHRP-2 Dosage & Reconstitution

1Set Up Your Mix

Your Answer — GHRP-2Your Answer

2Week-By-Week Plan — GHRP-2

3Common Doses — GHRP-2

About GHRP-2About This Peptide

Where These Numbers Come From

Newest Studies — —

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