How many units of GHRP-2 should I draw?

It depends on your vial size, BAC water, and dose. For a 5mg vial with 2mL BAC water, a beginner dose of 100mcg is typically 4 units on a U-100 syringe. Use the calculator above for your exact numbers.

How much BAC water should I add to GHRP-2?

The standard amount is 2mL of bacteriostatic water for a 5mg vial. More water gives a more dilute solution — easier to measure small doses. Less water means fewer injections per vial. Adjust the BAC water slider in the calculator to see how it changes your syringe units.

How long does a GHRP-2 vial last?

At a beginner dose of 100mcg daily, a 5mg vial lasts about 50 doses. The calculator shows exact doses per vial for your selected tier.

What syringe should I use for GHRP-2?

Most people use a U-100 insulin syringe (1mL / 100 units). For very small doses, a U-50 or U-30 syringe gives better precision. The calculator adjusts units automatically for whichever syringe you pick.

GHRP-2 Dosage Calculator

Growth HormoneInjectionResearch~15-30 min half-life

GHRP-2 (Growth Hormone Releasing Peptide-2) is a second-generation GH secretagogue that stimulates the pituitary gland via the ghrelin receptor.

Strong GH release — more potent than IpamorelinModerate appetite increase (useful for lean bulking)Well-researched with extensive clinical dataImproves deep sleep and recovery8 weeks on / 4 weeks off

Vial Size

BAC Water (mL)

Dosing Level

100mcg · Daily

Custom Dose (mcg) — optional

Syringe Type

4.0 units

100 units (1mL)

Concentration

2,500

mcg/mL

Draw Volume

0.040

Syringe Units

4.0

units

Doses / Vial

doses

Summary: Add 2mL BAC water to your 5mg vial. Draw to 4.0 units on a U-100 syringe for a 100mcg dose. This vial will last 50 doses.

Cycle Planner

Cycle Length (weeks)

Price Per Vial ($) — optional

Subcutaneous. Typical beginner frequency: daily.

GHRP-2 Pharmacokinetics

Pharmacokinetics — Active Dose Over Time

t½ = ~15-30 min

After 1 half-life (23m): 50% remainsAfter 2 half-lives (45m): 25% remainsAfter 3 half-lives (1h): 12.5% remains

At a 200mcg dose: 50% = 100mcg remaining after 23m. Recommended frequency: 2x Daily.

Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.

GHRP-2 Dosing Protocol

Level	Dose / Injection	Frequency
Beginner	100mcg	Daily
Moderate	200mcg	2x Daily
Aggressive	300mcg	3x Daily

Note: Second-generation GHRP. Moderate hunger increase. Stronger GH pulse than Ipamorelin but cleaner than GHRP-6. Best on empty stomach. Stacks well with a GHRH peptide.

About GHRP-2

GHRP-2 (Growth Hormone Releasing Peptide-2) is a second-generation GH secretagogue that stimulates the pituitary gland via the ghrelin receptor. It produces a stronger GH pulse than Ipamorelin but with fewer side effects than GHRP-6. It causes a moderate increase in appetite (less than GHRP-6) and slight elevations in cortisol and prolactin. It's widely used in research and clinical settings as a reliable GH-releasing agent.

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