L-Carnitine Dosage & Reconstitution Guide
⚠ People with seizure disorders should avoid L-carnitine or use it only under medical supervision, as it has been linked to increased seizure activity in some individuals. Those with kidney disease, on dialysis, hypothyroidism, or trimethylaminuria should consult a clinician first.
Research and educational use only — not medical advice, and not for human consumption. The figures below are summarized from public sources, product labeling, and community reports, and are not a prescription or a substitute for a qualified clinician.
Dosing schedule
| Phase | Dose | Notes |
|---|---|---|
| Low dose | 200 mg | ~0.4 mL of a 500 mg/mL solution, 1-3x/week |
| Standard dose | 300 mg | ~0.6 mL, often pre-workout |
| High dose | 500 mg | ~1 mL; may be split or given IM |
Timing & cycling
Often given before workouts on training days; can be used any time otherwise. Oral versions are sometimes taken with a carbohydrate-containing meal to aid uptake.
Cycle length. No fixed cycle - used continuously as an adjunct to diet and exercise. It is not a hormonal compound, so no post-cycle protocol is needed.
Storage & handling
This product ships as a ready-to-use solution, so there is no powder to reconstitute. Keep it refrigerated at 2–8 °C, protected from light, and draw each dose straight into an insulin syringe. Swab the stopper before every draw and use a fresh needle each time.
Key points
- This is a ready-to-use solution (commonly 500 mg/mL) - no reconstitution or bacteriostatic water needed.
- L-Carnitine is an amino-acid-derived nutritional compound, not a peptide.
- Injected volumes are larger than a vitamin shot - a 500 mg dose is about 1 mL - so doses are sometimes split or given IM.
- It can also be taken orally; the injectable route is mainly a clinic/lifestyle choice, not a proven requirement for benefit.
- Benefits for fat loss are modest and depend on pairing it with diet and exercise.
What to monitor
Generally minimal for supplement-level use; for medical deficiency, plasma free and total carnitine. Watch GI tolerance and, in at-risk people, thyroid and kidney status.
Legal & prescription status
Oral form is an OTC dietary supplement; injectable levocarnitine is compounded/clinic-supplied or prescription for medical deficiency.
References
This guide is for research and educational purposes only. It is not medical advice and does not describe a product approved for human use. Always consult a qualified healthcare professional before considering any peptide protocol.