Peptide Schedule Research TeamReviewed Apr 202610 Citations
L-CarnitineSmall moleculeNo amino acid sequence. Icon reflects category theme only.Adjust vial, water, and dose — answer updates live
on a U-100 syringe for a 250mcg dose
Never miss a dose — 250mcg daily, draw 0.00 units on U-100 syringe.
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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.
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.
