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Tool · GHRP-2 reconstitution arithmetic

GHRP-2 dosage calculator

Pick a GHRP-2 vial size, enter the bacteriostatic water added and, if you want, an amount per draw. The calculator gives the concentration and how many units that is on a U-100 insulin syringe. It does arithmetic only and does not suggest an amount.

U-100 syringes · 100 units = 1 mL · 1 mg = 1,000 mcg

mg
mL
mcg

Enter the amount you are working with. The calculator does not suggest one.

Syringe (U-100)

Concentration

5 mg/mL

50 mcg per unit on a U-100 syringe · 500 mcg per 0.1 mL

Enter an amount per draw to see how many units it is and how many draws the vial holds.

Not medical advice

This tool converts between amounts, volumes and syringe units. It is not a recommendation to use GHRP-2 or a guide to how much to use, and it cannot tell you whether a product is what its label says. For the amounts used in research, with sources, see the doses used in published GHRP-2 studies. Disclaimer

GHRP-2 vial sizes stores list

From 165 active GHRP-2 listings of 100 mg or less in our directory. The buttons above use these sizes.

  • 10 mg83 listings
  • 5 mg58 listings
  • 15 mg8 listings
  • 100 mg8 listings
  • 50 mg5 listings
  • 2 mg1 listing

Compare GHRP-2 prices by supplier

Worked example

A 10 mg GHRP-2 vial with 2 mL of bacteriostatic water is 5 mg/mL (5,000 mcg/mL). One unit on a U-100 syringe is 0.01 mL, so each unit holds 50 mcg. To find how many units an amount is, divide the amount in mcg by 50.

Read more about bacteriostatic water and storing a mixed vial, or the GHRP-2 guide.

GHRP-2 concentration by vial size and water added

mcg per unit on a U-100 syringe. Read across for more water, down for a larger vial.

Vial1 mL water2 mL water3 mL water
2 mg20 mcg/unit · 2 mg/mL10 mcg/unit · 1 mg/mL6.7 mcg/unit · 0.67 mg/mL
5 mg50 mcg/unit · 5 mg/mL25 mcg/unit · 2.5 mg/mL16.7 mcg/unit · 1.67 mg/mL
10 mg100 mcg/unit · 10 mg/mL50 mcg/unit · 5 mg/mL33.3 mcg/unit · 3.33 mg/mL
15 mg150 mcg/unit · 15 mg/mL75 mcg/unit · 7.5 mg/mL50 mcg/unit · 5 mg/mL
50 mg500 mcg/unit · 50 mg/mL250 mcg/unit · 25 mg/mL166.7 mcg/unit · 16.67 mg/mL
100 mg1,000 mcg/unit · 100 mg/mL500 mcg/unit · 50 mg/mL333.3 mcg/unit · 33.33 mg/mL

Questions

How much bacteriostatic water for a 10 mg GHRP-2 vial?
The amount of water does not change how much GHRP-2 is in the vial; it sets the concentration. With 1 mL a 10 mg vial is 10 mg/mL, with 2 mL it is 5 mg/mL and with 3 mL it is 3.333 mg/mL. More water makes each unit weaker, so a given amount takes more units to draw.
How many mcg are in one unit of a 10 mg GHRP-2 vial?
With 2 mL of water, one unit on a U-100 syringe holds 50 mcg (5,000 mcg per mL divided by 100). The table above gives the figure for other vial sizes and volumes.
Is this a GHRP-2 dosage calculator?
It converts between amounts, volumes and syringe units for GHRP-2; it does not suggest how much to use. The GHRP-2 guide lists the doses used in published studies, with their sources.
What size are GHRP-2 vials?
Across 165 listings in our directory, the most common sizes are 10 mg, 5 mg, 15 mg, 100 mg. Sizes and prices by store are on the GHRP-2 price page.
How many units are in 1 mL on an insulin syringe?
A U-100 insulin syringe holds 100 units per mL, so 1 unit is 0.01 mL.

Working with a different product? Use the general peptide calculator.