Question 1

What is a peptide reconstitution calculator?

Accepted Answer

A reconstitution calculator tells you exactly how much liquid to draw into your syringe based on vial size, BAC water volume, and target dose. It outputs a single number — the unit mark on your U-100 insulin syringe to draw to.

Question 2

What formula does the calculator use?

Accepted Answer

Concentration (mcg/mL) = (vial mg × 1000) ÷ BAC water mL. Volume (mL) = dose mcg ÷ concentration. Syringe units = volume × 100. Example: 5 mg vial in 2 mL → 2,500 mcg/mL. 250 mcg dose → 0.1 mL → 10 units.

Question 3

How many units do I draw for 250 mcg of BPC-157?

Accepted Answer

With a 5 mg vial in 2 mL BAC water (2,500 mcg/mL): 250 ÷ 2,500 = 0.1 mL = 10 units. If you used 1 mL, concentration doubles to 5,000 mcg/mL and you'd draw 5 units. Always enter your actual BAC water volume.

Question 4

How do I calculate semaglutide dose in units?

Accepted Answer

For 0.5 mg vial in 1 mL: concentration = 500 mcg/mL. A 0.25 mg (250 mcg) dose = 50 units. Select 'Semaglutide' from the dropdown — standard values auto-fill.

Question 5

What is a U-100 insulin syringe?

Accepted Answer

A U-100 syringe is calibrated so 1 unit = 0.01 mL exactly. This makes the math simple: multiply mL by 100 to get the unit mark. They're available at any pharmacy in 0.3–1 mL sizes, 29–31 gauge.

Question 6

What if my result is above 100 units?

Accepted Answer

Your required volume exceeds the syringe capacity. Fix: (1) switch to a larger syringe using the Syringe Type dropdown, (2) reconstitute with less BAC water to increase concentration, or (3) split the dose into two injections.

Question 7

How much BAC water should I add?

Accepted Answer

1–2 mL is standard for most peptides. 2 mL is a good default — doses typically fall in the 10–50 unit range, which is easy to measure accurately on a 1 mL syringe.

Question 8

What's the difference between mg and mcg?

Accepted Answer

mg (milligrams) is on the vial. mcg (micrograms) is how doses are measured. 1 mg = 1,000 mcg. Use the 'Switch to mg' button for GLP-1 agonists like semaglutide.

Question 9

How many doses will I get from my vial?

Accepted Answer

Doses/vial = (vial mg × 1,000) ÷ dose mcg. A 5 mg vial at 250 mcg/dose = 20 doses. The Days Supply number shows how long that lasts at your injection frequency.

Question 10

Where can I buy research peptides?

Accepted Answer

We rank 32+ research peptide suppliers by COA documentation, HPLC purity, shipping speed, and support quality. View our vendor rankings at /vendors.

Peptide	Vial	BAC Water	Dose	IU to Draw
BPC-157	5 mg	2 mL	250 mcg	10 IU
BPC-157	5 mg	2 mL	500 mcg	20 IU
Semaglutide	0.5 mg	1 mL	0.25 mg	50 IU
Semaglutide	2 mg	2 mL	0.5 mg	50 IU
Tirzepatide	5 mg	1 mL	2.5 mg	50 IU
Tirzepatide	10 mg	2 mL	5 mg	100 IU
TB-500	10 mg	2 mL	5 mg	10 IU
CJC-1295	2 mg	2 mL	100 mcg	10 IU
Ipamorelin	2 mg	2 mL	200 mcg	20 IU
PT-141	10 mg	2 mL	1 mg	20 IU
Sermorelin	3 mg	3 mL	300 mcg	30 IU
AOD-9604	5 mg	2 mL	300 mcg	12 IU

Vial	+ 2 mL	+ 5 mL	+ 10 mL
2 mg	100 mcg / 1 IU	40 mcg / 1 IU	20 mcg / 1 IU
5 mg	250 mcg / 1 IU	100 mcg / 1 IU	50 mcg / 1 IU
10 mg	500 mcg / 1 IU	200 mcg / 1 IU	100 mcg / 1 IU

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