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Peptide Vial Calculator

Glutathione reconstitution calculator

Concentration in mg/mL, draw volume in mL and the U-100 equivalent for 600 and 1,500 mg glutathione vials.

Glutathione is a tripeptide of glutamate, cysteine and glycine that cells make for themselves, and one of the most widely studied antioxidants in biochemistry. Research-labelled glutathione is sold as lyophilized powder in far larger vials than most peptides: 600 mg and 1,500 mg are the common sizes, and 1,500 mg is the one sold most widely.

Community-reported amounts are in the hundreds of milligrams, roughly 100 to 600 mg, so water volumes are larger too and a single draw often comes to more than 1 mL. The calculator works in mg and mg/mL, shows the volume in mL first with the U-100 equivalent beside it, and says when that volume is more than the selected syringe holds. Oral capsules and tablets are a different product and outside the scope of this page.

Glutathione calculator

Vial contents
mg in the vial
Diluent added (bacteriostatic water)
mL
Amount to measure
mg
Syringe (U-100)
Volume1.333mL= 133 units on a U-100 scale
0102030405060708090100
Concentration
150.00 mg/mL
Volume
1.333 mL
Amount
200 mg
Amounts per vial
7.5
7 whole

1.333 mL is more than a 1 mL U-100 syringe holds (100 units): it is 2 fills of that syringe (1 full + 0.333 mL, 33.3 units). A syringe graduated in mL that holds at least 1.333 mL measures it in one fill; the mL figure is the one that carries over.

Results are arithmetic from the three numbers entered. U-100 scale: 100 units = 1 mL. Presets are figures reported in published and community sources, offered as shortcuts, not recommendations. The vial label is the number to trust.

Setups entered by researchers

Not enough Glutathione calculations have been logged yet to publish a breakdown. A peptide's setups appear here once it passes 100 calculations and a setup has been entered at least 30 times. How the setup data works.

Glutathione reconstitution chart

Volumes in mL for each vial size and water volume, with the U-100 equivalent (u) underneath; cells over 1 mL are marked. Columns are amounts that appear in published and community sources, listed for comparison only.

1500 mg vial

WaterConcentration200 mg300 mg400 mg600 mg
5 mL300 mg/mL0.667 mL66.7 u1 mL100 u1.333 mL133.3 uover 1 mL2 mL200 uover 1 mL
10 mL150 mg/mL1.333 mL133.3 uover 1 mL2 mL200 uover 1 mL2.667 mL266.7 uover 1 mL4 mL400 uover 1 mL
15 mL100 mg/mL2 mL200 uover 1 mL3 mL300 uover 1 mL4 mL400 uover 1 mL6 mL600 uover 1 mL
20 mL75 mg/mL2.667 mL266.7 uover 1 mL4 mL400 uover 1 mL5.333 mL533.3 uover 1 mL8 mL800 uover 1 mL

600 mg vial

WaterConcentration200 mg300 mg400 mg600 mg
3 mL200 mg/mL1 mL100 u1.5 mL150 uover 1 mL2 mL200 uover 1 mL3 mL300 uover 1 mL
5 mL120 mg/mL1.667 mL166.7 uover 1 mL2.5 mL250 uover 1 mL3.333 mL333.3 uover 1 mL5 mL500 uover 1 mL
10 mL60 mg/mL3.333 mL333.3 uover 1 mL5 mL500 uover 1 mL6.667 mL666.7 uover 1 mL10 mL1000 uover 1 mL

How the Glutathione numbers are worked out

Concentration is the vial mass divided by the water, in mg/mL rather than mcg/mL at this scale: 1,500 mg in 10 mL is 150 mg/mL, 1,500 mg in 5 mL is 300 mg/mL, and 600 mg in 3 mL is 200 mg/mL.

Volume is the amount divided by the concentration. 200 mg from a 1,500 mg vial at 10 mL is 1.333 mL (133.3 units on a U-100 scale). A U-100 syringe reads 100 units per mL, so any volume over 1 mL is more than a 1 mL insulin syringe holds; the calculator then gives the number of fills of the selected syringe, and the mL figure applies to any syringe graduated in mL.

The arithmetic treats the water added as the final volume. At these masses the dissolved powder takes up some volume of its own, so the real concentration is somewhat lower than the figure shown and the vial ends up holding a little more liquid than the water added. The vial label and any reconstitution sheet that comes with it are the figures to trust.

Research background and vendor comparisons for glutathione are covered in a glutathione research overview.

Glutathione calculator questions

How many mL is 200 mg of glutathione from a 1,500 mg vial with 10 mL of water?

The vial is 150 mg/mL, so 200 mg is 1.333 mL (133.3 units on a U-100 scale). 1.333 mL is more than a 1 mL U-100 syringe holds (100 units): it is 2 fills of that syringe (1 full + 0.333 mL, 33.3 units). A syringe graduated in mL that holds at least 1.333 mL measures it in one fill; the mL figure is the one that carries over. The vial holds 7.5 amounts of 200 mg.

How does the water volume change the reading for a 1,500 mg vial?

Only the volume changes, not the mass. With 5, 10, 15 and 20 mL the vial is 300 mg/mL, 150 mg/mL, 100 mg/mL and 75 mg/mL, so 300 mg is 1 mL, 2 mL, 3 mL and 4 mL respectively. Of these, only the 5 mL figure fits within one 1 mL U-100 syringe (100 units). The vial holds 5 amounts of 300 mg whatever the water.

How many mL is 200 mg from a 600 mg glutathione vial?

With 3 mL the vial is 200 mg/mL, so 200 mg is 1 mL (100 units on a U-100 scale), exactly one full 1 mL U-100 syringe. With 5 mL it is 1.667 mL (166.7 units on a U-100 scale), and with 10 mL 3.333 mL (333.3 units on a U-100 scale). A 600 mg vial holds 3 amounts of 200 mg.

Why does this page show mL first instead of syringe units?

Glutathione amounts are hundreds of milligrams, so the volume is often more than the 100 units a 1 mL U-100 syringe holds. 600 mg from a 1,500 mg vial at 10 mL is 4 mL (400 units on a U-100 scale). Units only describe a U-100 insulin syringe, while mL applies to any syringe graduated in mL, so mL is the figure that carries over.

Is a glutathione vial calculated the same way as an oral supplement?

No. Oral glutathione is sold as a dietary supplement in capsules or tablets with a fixed amount per unit, so there is nothing to reconstitute. This page covers only lyophilized vials mixed with water and does not compare routes.

What glutathione amounts do community sources report?

Community sources describe amounts from roughly 100 to 600 mg, with 200 to 600 mg cited most often. The presets (200, 300, 400 and 600 mg) reflect those reports to save typing, not as a recommendation, and none of them is presented here as a standard dose.

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