How do I reconstitute peptides with bacteriostatic water?

Draw bacteriostatic water into a syringe, inject slowly down the vial wall (not directly onto powder), then gently swirl until dissolved. Never shake. Store refrigerated at 2-8C and use within 28 days.

How many units should I draw on an insulin syringe?

1 mL equals 100 units on a standard insulin syringe. Divide your required volume in mL by 0.01 to get units. For example, 0.25 mL = 25 units. Use the smallest syringe that fits your dose for better precision.

What syringe size should I use for peptide injections?

0.3 mL (30 unit) syringes offer the best precision for small doses under 0.3 mL. 0.5 mL (50 unit) syringes work for most peptides. 1 mL (100 unit) syringes are needed for larger dose volumes.

Dosing Tools

Peptide Reconstitution Calculator

Calculate peptide doses with our visual syringe guide

PT-141 Calculator

Calculate reconstitution doses for PT-141

PT-141 profile Accumulation plotter

Vial Size (peptide amount)

BAC Water (added to vial)

Desired Dose

Syringe Size

Concentration 5.00 mg/mL

Doses per vial 5

1mL / 100 units

35 units

0.350 mL

How to use: Enter your vial size and the amount of bacteriostatic water you'll add. Then enter your desired dose to see exactly how much to draw.

Tip: 1 mL = 100 units on an insulin syringe. Draw slowly to ensure accuracy.

PT-141 Reference

PT-141 Dosing Protocols

Goal	Dose	Frequency
Female HSDD (FDA-approved)	1.75mg	As needed, max 1 dose/24hr
Male Erectile Dysfunction	1-2mg	As needed, 45-60min before activity
Female Arousal Disorder	0.75-1.25mg	As needed, max 1 dose/24hr
Low Starting Dose	0.5mg	Test dose for tolerance assessment

Reconstitution Steps

01 Allow vial to reach room temperature (15-20 minutes)
02 Clean vial tops with alcohol swabs
03 Draw 1-2mL bacteriostatic water
04 Inject BAC water slowly down vial side
05 Gently swirl until fully dissolved (do not shake)
06 Solution should appear clear and colorless
07 Store reconstituted solution refrigerated
08 Use within 30 days of reconstitution

Quick Reference

Typical Dose Women: 1.75mg (FDA-approved); Men: 1-2mg; Start 0.5mg test dose for tolerance

Frequency As needed before sexual activity; max 1 dose per 24 hours

Half-life ~2.7 hours

Storage Refrigerate at 2-8°C, use reconstituted solution within 30 days

Cycle Use as needed for sexual enhancement

View full PT-141 profile

Research Purposes Only

These calculators are provided for educational and research purposes only. Always verify calculations and consult with qualified professionals. The information provided is not medical advice. Peptides should only be used in accordance with applicable laws and regulations.