Peptide Dosage Calculator

The Peptide Dosage Calculator is an essential tool for anyone using peptide therapy, whether for medical treatment, anti-aging, athletic performance, or recovery. Peptides are typically supplied as freeze-dried (lyophilized) powder in vials and must be reconstituted with bacteriostatic water before injection. This calculator helps you determine the exact syringe measurement needed for your prescribed dose, eliminating guesswork and ensuring accurate administration.

Understanding Peptide Reconstitution

Reconstitution is the process of adding bacteriostatic water to freeze-dried peptide powder to create an injectable solution. The amount of water you add determines the concentration of your final solution. Using more water creates a more dilute solution with larger syringe measurements (easier to measure accurately), while less water creates a more concentrated solution with smaller measurements. Most users reconstitute with 1-3ml of bacteriostatic water, with 2ml being the most common choice for optimal balance between accuracy and convenience.

How to Calculate Peptide Dosage

The calculation uses the formula: Syringe Units = (Dose / Vial Capacity) × Water Volume × 100. For example, if you have a 5mg vial reconstituted with 2ml water and need a 250mcg dose: (250mcg / 5000mcg) × 2ml × 100 = 10 units on the syringe. The multiplication by 100 converts milliliters to syringe units, where 1 unit = 0.01ml on a standard insulin syringe. This calculator performs these conversions automatically, accounting for the fact that vial capacity is typically listed in milligrams while doses are prescribed in micrograms.

Understanding Syringe Units

Insulin syringes are marked in "units" where 1 unit equals 0.01ml (one-hundredth of a milliliter). A standard 1ml insulin syringe has 100 units total. These syringes are ideal for peptide injections because they allow precise measurement of very small volumes. When the calculator tells you to "pull to 10 units," it means you should draw the solution up to the 10-unit mark on your syringe, which equals 0.1ml of liquid containing your desired peptide dose.

Common Peptide Dosages

Different peptides have different standard dosing protocols. BPC-157 is typically dosed at 250-500mcg once or twice daily for injury recovery. TB-500 (Thymosin Beta-4) uses a loading phase of 2-5mg twice weekly, followed by maintenance at 2mg weekly. Growth hormone releasing peptides like Ipamorelin or CJC-1295 are commonly dosed at 100-300mcg per injection. AOD 9604 for fat loss is typically 300mcg daily. Always follow your healthcare provider's specific dosing recommendations, as individual needs vary based on goals, body weight, and response.

Storage and Stability

Unreconstituted peptide vials should be stored in the refrigerator (2-8°C) or freezer for long-term storage. Once reconstituted with bacteriostatic water, peptides must be refrigerated and typically remain stable for 28-30 days. Never freeze reconstituted peptides as this can damage the peptide structure. Always use bacteriostatic water (not sterile water) for reconstitution, as it contains 0.9% benzyl alcohol which prevents bacterial growth and extends shelf life. Store vials upright and away from light.

This calculator provides accurate dosing calculations for educational purposes and to assist with proper peptide administration. However, peptide therapy should only be undertaken under the supervision of qualified healthcare professionals who can provide personalized dosing recommendations, monitor for side effects, and ensure appropriate use for your specific health goals.