l carnitine l tartrate monograph L-CARNITINE tartrate is a stable form of L L-Carnitine L-Tartrate - Abco India
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doi: 10.1371/journal.pone.0050107

Increased Energy Levels

Dissecting cellular mechanisms of long-chain acylcarnitines-driven cardiotoxicity: Disturbance of calcium homeostasis, activation of Ca2+-dependent phospholipases, and mitochondrial energetics collapse

In this study, higher BMI was associated with a reduced response to L-carnitine supplementation

It is found in the highest concentrations in the brain and skeletal muscle

It very much depends on the brand, according to new tests by ConsumerLab.com
