Carnosine Dosing Calculator
Carnosine: endogenous dipeptide with anti-glycation, antioxidant, and pH-buffering properties.
Pre-filled with the most-reported clinical reconstitution protocol for Carnosine. See how 1 mL and 2 mL of bacteriostatic water change concentration and syringe-draw volume, then adjust the calculator below for your own vial.
Quick answer · Clinical protocol
A 15 mg vial of Carnosine reconstituted with 2 mL of bacteriostatic water yields a concentration of 7.50 mg/mL. At that concentration, a 1 mg dose of Carnosine equals 13.3 units on a U-100 insulin syringe (0.133 mL). Carnosine is typically administered once daily.
Carnosine reconstitution: 1 mL vs 2 mL bac water
Bacteriostatic water volume is flexible. Less water means higher concentration and smaller injection volumes; more water means lower concentration and easier dose precision. Both options below are valid for a 15 mg vial.
| BAC water added | Concentration | Volume per 1 mg dose | Draw on U-100 syringe (units) |
|---|---|---|---|
| 1 mL | 15.00 mg/mL | 0.067 mL | 6.7 units |
| 2 mL | 7.50 mg/mL | 0.133 mL | 13.3 units |
Calculate your Carnosine dose
Alternative Carnosine protocols
Beyond the default above, Carnosine is also reported in the following protocols. Use these as starting points and recalculate with the tool above.
Standard Oral Anti-Aging Protocol
Community- Dose
- 500-1000 mg
- Frequency
- 1-2 times daily
- Duration
- Ongoing
- Route
- Oral
Most common protocol; taken as OTC supplement capsules, split into AM and PM doses for consistent levels
Higher-Dose Anti-Glycation Protocol
Community- Dose
- 1000-2000 mg
- Frequency
- Divided into 2 daily doses
- Duration
- Ongoing
- Route
- Oral
Higher doses targeting anti-glycation effects; some users combine with beta-alanine to sustain tissue levels
Exercise Performance Protocol
Community- Dose
- 500-1000 mg
- Frequency
- Once daily, pre-exercise
- Duration
- Ongoing
- Route
- Oral
Used alongside or instead of beta-alanine for muscle buffering; timed around exercise for performance benefits
Topical Eye Drop Protocol
Community- Dose
- 1% N-acetylcarnosine drops
- Frequency
- 1-2 drops per eye, 1-2 times daily
- Duration
- 3-6 months
- Route
- Topical (ophthalmic)
N-acetylcarnosine eye drops used for age-related cataracts; limited clinical evidence
Cognitive Function (Elderly Populations)
Clinical- Dose
- 1 g/day of carnosine or carnosine/anserine mixture for 12 weeks in multiple RCTs. Meta-analysis showed improvement in global cognitive function scores.
- Frequency
- Daily oral dosing
- Duration
- 12 weeks
Based on systematic review and meta-analysis by Caruso et al. (2021). Effective in both healthy elderly subjects and those with mild cognitive impairment. No effects on depressive symptoms at this dose.
Carnosine reconstitution & storage
Carnosine is available as an oral dietary supplement and does not require reconstitution. Capsules and tablets are the most common formulations. N-acetylcarnosine is available as ophthalmic eye drops (typically 1% solution). No injectable formulations are commercially available for supplementation.
Store carnosine supplements in a cool, dry place away from direct sunlight and moisture. Sealed containers at room temperature are adequate for capsule and tablet formulations. N-acetylcarnosine eye drops should be stored according to manufacturer instructions, typically refrigerated after opening.
Carnosine dosing FAQ
How much bacteriostatic water should I add to a 15 mg vial of Carnosine?
The community standard is 2 mL of bacteriostatic water for a 15 mg Carnosine vial. That gives a concentration of 7.50 mg/mL, so a 1 mg dose is 13.3 units on a U-100 insulin syringe. Adding 1 mL instead doubles the concentration to 15.00 mg/mL and halves the draw to 6.7 units. Less water = smaller injection volume but harder to measure precisely.
How many syringe units is a 1 mg dose of Carnosine?
On a standard U-100 insulin syringe, a 1 mg dose of Carnosine is 13.3 units when the 15 mg vial is reconstituted with 2 mL of bacteriostatic water (7.50 mg/mL). If you use 1 mL of bac water instead, draw 6.7 units (15.00 mg/mL).
What is the standard Carnosine dose?
Clinical protocols for Carnosine typically use 1 mgâ500 mg once daily via subcutaneous injection. 1 mg is a common starting dose. Double-blind, placebo-controlled RCT in 54 patients with type 2 diabetes. Higher dose of 2 g/day used in the de Courten et al. 14-week trial with similar glucose-lowering effects.
How long does a vial of Carnosine last at 1 mg once daily?
A 15 mg vial of Carnosine contains roughly 15 doses at 1 mg per injection. At once daily dosing, that is approximately 15 days (about 2 weeks) of supply per vial. Reconstituted Carnosine should generally be used within 28 days when refrigerated.
Where do you inject Carnosine?
Carnosine is typically administered subcutaneously. Common subcutaneous sites are the lower abdomen (at least an inch from the navel), the outer thigh, and the love handles. Rotate sites with each injection to reduce localized irritation and bruising.
Can I use sterile water instead of bacteriostatic water for Carnosine?
Bacteriostatic water (containing 0.9% benzyl alcohol as a preservative) is strongly preferred for multi-dose vials like Carnosine because it inhibits microbial growth and lets a single vial be used over multiple weeks. Sterile water has no preservative and should generally be reserved for single-use preparations only.
More on Carnosine
Medical Disclaimer
This website is for educational and informational purposes only. The information provided is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before using any peptide or supplement.