L-Carnitine
Amino-acid derivative that shuttles long-chain fatty acids into mitochondria for ATP production. The classic 'fat-loss' supplement that has actual mechanism — when dosed correctly.
What it actually is
Not a peptide. L-Carnitine is a quaternary ammonium compound synthesized from lysine and methionine. It's not technically an amino acid, but it's amino-acid-derived. Required for any cell that burns fatty acids for energy — it's the gatekeeper that lets fat into the mitochondria.
Why peptide users come across it
Pairs naturally with GLP-class peptides during cuts to help preserve fatty-acid oxidation when caloric intake drops. Common adjunct in body recomp protocols. Often stacked with ALCAR for the cognitive layer.
Mechanism
Documented dose range
Side effects
Contraindications
The Pepdex take
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