Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeptide Schedule Research TeamReviewed Apr 202610 Citations
L-Carnitine injectable delivers 100% bioavailability compared to 15-18% oral. FDA-approved as Carnitor for carnitine deficiency. A meta-analysis of 37 RCTs confirmed modest but real fat loss support. Best results come paired with caloric deficit and exercise. Often combined with ALA or CoQ10.
250mcg · Daily
Summary: Add 0mL BAC water to your 1000mg vial. Draw to < 0.1 units on a U-100 syringe for a 250mcg dose. This vial will last 0 doses.
View side effects and safety warnings →
| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 250mg | Daily |
| Moderate | 500mg | Daily |
| Aggressive | 1000mg | Daily |
Pre-filled injectable solution. No reconstitution, no bacteriostatic water, no mixing math. That alone makes L-Carnitine one of the easiest injectables to work with. Two concentrations matter. Carnitor (FDA brand) comes at 200 mg/mL. Compounded versions run 500 mg/mL. Read the vial label before you draw. At 200 mg/mL, a 500 mg dose is 2.5 mL; that's a lot of fluid for one IM site. At 500 mg/mL, the same dose is just 1.0 mL (100 units on an insulin syringe). Most community users go with 500 mg/mL compounded for this reason. Don't inject subcutaneously at 500 mg/mL. The solution is hypertonic and creates nodules that can persist for months. IM only at that concentration. If SC is your only option, use 200 mg/mL. Warm the vial to room temperature before injecting. Cold solution burns more going in. Gluteal muscle handles the volume best; deltoid works if the volume is under 1.5 mL.
Dosing based on CARNITOR (levocarnitine) Injection FDA Prescribing Information (2018) — 14 published references.View all sources →
Cross-check your L-Carnitine reconstitution math with AI
Pricing updated 2026-04-09
Prices are estimates and vary by source, location, and prescription status.Full pricing breakdown →
Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.
L-Carnitine injectable delivers 100% bioavailability compared to 15-18% oral. FDA-approved as Carnitor for carnitine deficiency. A meta-analysis of 37 RCTs confirmed modest but real fat loss support. Best results come paired with caloric deficit and exercise. Often combined with ALA or CoQ10.