How much bacteriostatic water for a 20 mg Thymogen vial?

The amount of water does not change how much Thymogen is in the vial; it sets the concentration. With 1 mL a 20 mg vial is 20 mg/mL, with 2 mL it is 10 mg/mL and with 3 mL it is 6.667 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 20 mg Thymogen vial?

With 2 mL of water, one unit on a U-100 syringe holds 100 mcg (10,000 mcg per mL divided by 100). The table above gives the figure for other vial sizes and volumes.

Is this a Thymogen dosage calculator?

It converts between amounts, volumes and syringe units for Thymogen; it does not suggest how much to use. The Thymogen guide lists the doses used in published studies, with their sources.

What size are Thymogen vials?

Across 47 listings in our directory, the most common sizes are 20 mg, 50 mg, 5 mg, 10 mg. Sizes and prices by store are on the Thymogen 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.

Tool · Thymogen reconstitution arithmetic

Thymogen dosage calculator

Pick a Thymogen 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

Concentration

10 mg/mL

100 mcg per unit on a U-100 syringe · 1,000 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 Thymogen 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 Thymogen studies. Disclaimer

Thymogen vial sizes stores list

From 47 active Thymogen listings of 100 mg or less in our directory. The buttons above use these sizes.

20 mg27 listings
50 mg6 listings
5 mg3 listings
10 mg3 listings
25 mg3 listings
0.5 mg2 listings

Compare Thymogen prices by supplier

Worked example

A 20 mg Thymogen vial with 2 mL of bacteriostatic water is 10 mg/mL (10,000 mcg/mL). One unit on a U-100 syringe is 0.01 mL, so each unit holds 100 mcg. To find how many units an amount is, divide the amount in mcg by 100.

Read more about bacteriostatic water and storing a mixed vial, or the Thymogen guide.

Thymogen 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.

Vial	1 mL water	2 mL water	3 mL water
0.5 mg	5 mcg/unit · 0.5 mg/mL	2.5 mcg/unit · 0.25 mg/mL	1.7 mcg/unit · 0.17 mg/mL
5 mg	50 mcg/unit · 5 mg/mL	25 mcg/unit · 2.5 mg/mL	16.7 mcg/unit · 1.67 mg/mL
10 mg	100 mcg/unit · 10 mg/mL	50 mcg/unit · 5 mg/mL	33.3 mcg/unit · 3.33 mg/mL
20 mg	200 mcg/unit · 20 mg/mL	100 mcg/unit · 10 mg/mL	66.7 mcg/unit · 6.67 mg/mL
25 mg	250 mcg/unit · 25 mg/mL	125 mcg/unit · 12.5 mg/mL	83.3 mcg/unit · 8.33 mg/mL
50 mg	500 mcg/unit · 50 mg/mL	250 mcg/unit · 25 mg/mL	166.7 mcg/unit · 16.67 mg/mL

Questions

How much bacteriostatic water for a 20 mg Thymogen vial?: The amount of water does not change how much Thymogen is in the vial; it sets the concentration. With 1 mL a 20 mg vial is 20 mg/mL, with 2 mL it is 10 mg/mL and with 3 mL it is 6.667 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 20 mg Thymogen vial?: With 2 mL of water, one unit on a U-100 syringe holds 100 mcg (10,000 mcg per mL divided by 100). The table above gives the figure for other vial sizes and volumes.
Is this a Thymogen dosage calculator?: It converts between amounts, volumes and syringe units for Thymogen; it does not suggest how much to use. The Thymogen guide lists the doses used in published studies, with their sources.
What size are Thymogen vials?: Across 47 listings in our directory, the most common sizes are 20 mg, 50 mg, 5 mg, 10 mg. Sizes and prices by store are on the Thymogen 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.