L-Carnitine dosage and reconstitution
An injectable form of a cheap supplement that helps muscle burn fat for fuel. Good before cardio in a cut; not a fat-loss drug.
UnderstandWhat it isApplyHow to use it
Staying safe
Things people sometimes notice
- Stinging or a sore lump where you inject, worse with bigger volumes
- A fishy body odour at higher doses in some people
- Mild stomach upset or loose stools
Stop and get help if (trouble breathing or swelling: call 911)
- Rash, swelling of the face or lips, or trouble breathing (an allergic reaction)
- A site that becomes hot, hard and increasingly painful (a possible infection from large-volume shots)
Talk to your doctor first, especially if
- You take thyroid medicine; carnitine blunts thyroid hormone action and can shift your dose needs
- You have a seizure disorder, since seizures have been reported with carnitine in people prone to them
- You have heart disease and plan to run high doses long term; carnitine raises TMAO, which has been linked to heart risk
Mixing it
L-carnitine usually comes as a pre-mixed liquid (often 100 mg/ml), so there is nothing to reconstitute.
No mixing needed, it is a ready-to-use liquid.
Check the concentration on the label (commonly 100 mg/ml) and draw the volume that matches your dose.
Start small (around 50 mg) and titrate up.
The short version
What it isAn injectable form of a cheap supplement that helps muscle burn fat for fuel. Good before cardio in a cut; not a fat-loss drug.
EvidenceAnimal 4/5 · Human 4/5 · Limited
Want the background?What it is and the research
This is education, not medical advice. Doses shown are the patterns people commonly follow, not a prescription. Talk with a doctor before starting, especially if you take other medicines or have a health condition.