Weight Loss & Metabolic Meds
L-Carnitine
Street names: Carnitine, L-Carn L3
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Fat-transport molecule — marketed for fat loss and energy
- Evidence for fat loss in healthy people: weak
⚠Key risks
- TMAO production — potential cardiovascular concern with chronic high dose
- Injectable forms: infection risk, zero benefit over oral
- Fishy body odor at high doses
✚Overdose signs
- No acute overdose
- GI upset
- Fishy odor, nausea
📋Quick facts
Also known asCarnitine, L-Carn L3
CategoryWeight Loss & Metabolic Meds
Schedule / classSupplement — unregulated
AppearanceCapsules, liquids, injectable vials (grey)
Street price~$10–$30/month supplement; injectable grey ~$20–40/vial
Legal statusSupplement (oral); injectable Rx-only/grey
Last updated2026-09-16
Sources: FDA, PubMed
Category comparison — Weight Loss & Metabolic Meds
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| L-Carnitine | Supplement — unregulated | TMAO production — potential cardiovascular concern with chronic high dose; Injectable forms: infection risk, zero benefit over oral | ~$10–$30/month supplement |
| Metformin | Rx-only — not controlled | GI upset (diarrhea, nausea) — titrate slowly; Lactic acidosis — rare, dangerous, mostly in kidney disease | ~$0.05–$0.30 per tablet |
| AOD-9604 | 'Research chemical' — failed obesity trials; unscheduled | Doesn't work well enough to have been approved — that tells you the efficacy; Standard research-chemical quality risks | ~$25–$60 per vial grey-market |
Street prices are regional estimates. Potency and cuts vary constantly.
RxBrand names on the grey market
These brands are sold as this compound. Same molecule, different label and supply chain — quality varies enormously between them.
L-Carnitine
?Frequently asked questions
What does L-Carnitine look like?
Capsules, liquids, injectable vials (grey)
What are the signs of a L-Carnitine overdose?
No acute overdose; GI upset; Fishy odor, nausea Call emergency services immediately.
How addictive is it?
TMAO production — potential cardiovascular concern with chronic high dose Dependence can develop with regular use.