For research and educational purposes only. Not intended for human consumption.
L-Carnitine
Extensively Studied- •FDA-approved Carnitor® for deficiency
- •27% post-MI mortality reduction
- •100% injectable bioavailability
Amino Acid Derivative | Energy & Fat Metabolism
Overview
What is L-Carnitine?
L-Carnitine (levocarnitine) is a naturally occurring amino acid derivative essential for transporting long-chain fatty acids into mitochondria for energy production. Synthesized from lysine and methionine, it plays critical roles in energy metabolism. FDA-approved as Carnitor® for treating carnitine deficiency. Injectable form provides 100% bioavailability vs 14-18% oral.
Key Benefits
Maximum bioavailability (100% injectable), rapid onset, bypasses gut conversion to TMAO, supports fat metabolism and cardiovascular health, FDA-approved for deficiency.
Mechanism of Action
Injectable L-Carnitine delivers directly to circulation, providing immediate availability for fatty acid transport into mitochondria for beta-oxidation and ATP production.
Molecular Information
Pharmacokinetics
Research Indications
Carnitine Deficiency
FDA-approved for primary and secondary carnitine deficiency.
Dialysis Support
FDA-approved for ESRD patients who lose carnitine during hemodialysis.
Fat Metabolism
Enhanced fatty acid oxidation and energy production.
Research Protocols
Disclaimer: Injectable L-Carnitine is FDA-approved for carnitine deficiency and dialysis patients.
| Goal | Dose | Frequency | Route |
|---|---|---|---|
| Carnitine Deficiency | 50 mg/kg/day | Divided doses | IV |
| Hemodialysis | 10-20 mg/kg | Post-dialysis | IV slow push |
| Fat Metabolism/Performance | 500-1500mg | 1-3x weekly | IM or SubQ |
Timing: Can be administered any time. For exercise, some administer 1-2 hours before training.
Peptide Interactions
How to Reconstitute
Important: Always use bacteriostatic water (BAC). Sterile technique is essential.
L-Carnitine injectable comes pre-mixed
Check solution clarity - should be clear
For IV: May dilute in saline
For IM: Draw directly from vial
Clean injection site thoroughly
Dosing Calculator
Calculate your injection volume with visual dosing guide
To obtain 250 mcg from this solution:
Draw 0.10 mL=10 units
(1 mL = 100 units on any insulin syringe)
Draw to this mark for 250 mcg
This calculator is for research purposes only. Always verify calculations and consult protocols.
Quality Indicators
Clear, colorless solution
Clear to slightly yellow with no particles.
Proper pharmaceutical labeling
Lot number and expiration date.
Cloudy or particulate
Do not use if contaminated.
What to Expect
- •Days 1-7: Normalized carnitine levels, potential energy improvements
- •Weeks 2-4: Enhanced fat utilization during exercise
- •Weeks 4-8: Sustained metabolic benefits, body composition changes
Side Effects & Safety
Side Effects
- •FDA-approved - well-established safety profile
- •Injection site discomfort possible
- •High doses may cause fishy body odor
- •Use caution in hypothyroidism
- •Monitor if on anticoagulants
When to Stop
- •Unusual odor (high doses)
- •Injection site infection
- •As directed by provider
References
2 StudiesWeight Loss Meta-Analysis (2020)
37 RCTs | 2,292 participants | −1.21 kg body weight
Significant decreases in body weight, BMI (−0.24), and fat mass (−2.08 kg).
Cardiovascular Meta-Analysis (2013)
13 trials | 3,629 participants | 27% mortality reduction
27% all-cause mortality reduction post-MI, 65% reduction in arrhythmias.
Quick Start Guide
Research Disclaimer
L-Carnitine is sold for laboratory research purposes only and is not intended for human or animal consumption. The information provided on this page is compiled from published research, veterinary studies, and anecdotal reports for educational purposes. This content does not constitute medical advice, diagnosis, or treatment recommendations. Any research involving L-Carnitine must comply with all applicable local, state, and federal regulations. BioInfinity Lab makes no claims regarding the safety or efficacy of L-Carnitine for any purpose. Consult qualified professionals for any research applications.