L-Carnitine

Do you take it orally?
Liquid Carnitine 3000
Liquid Fat Burning For Max Performance

Converts Fat into Energy for Enhanced Performance
Boosts Workout Endurance and Reduces Fatigue
Preserves Muscle Glycogen for Improved Strength
Antioxidant Protection for Brain and Muscle Heath

Warning:

Usage period 3 months only.
The high level of dosis only for athletes.
Anyone with chronic diseases must use it under medical supervision.

Update. I don't use tadalafil, I just read that study and shared it, it's from a trusted source.
 
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Liquid Carnitine 3000
Sorry to disrupt your wet dreams, but you are only benefiting from placebo effect.
Bioavailability of oral carnitine is 5-18%, liquid form should be about 10%.
That “liquid carnitine 3000 mg” shot sounds hardcore until you understand what it is: just an expensive oral L-carnitine in syrup form. Same miserable absorption problem as capsules or powders:
  • Dose: 3000 mg sounds plenty, but at ~10% bioavailability you’re really netting 300 mg or less into circulation.
  • Frequency: people usually take it once or twice daily.
  • Effect: you might get a mild uptick in plasma carnitine, but muscle uptake is limited unless you co-dose with a big insulin spike (high-GI carbs or actual insulin).
  • Downside: high oral doses increase gut conversion to TMAO, which is linked (rightly or wrongly) to cardiovascular risk. Also: fishy breath or sweat is a common complaint.
Morale: inject 500mg-1g intramuscular if you want some real benefits without side effects.
 
Yes, true, injections are better but it's not available or good option for all.
 
Carnitine moves long-chain fats into mitochondria so you burn them for ATP. It’s not a stimulant, so it doesn't interfere with your CNS, and it actually helps you last longer, recover faster, and hold muscle while cutting.
L-CARNITINE molecule.jpg

L-Carnitine is synthesized in the liver/kidneys from lysine + methionine. Its entire personality is being a fat taxi: it binds long-chain fatty acids, drives them across the mitochondrial gate, and hands them off for beta-oxidation → acetyl-CoA → ATP.
Food contains some (red meat, poultry, fish, dairy). For athletes, “eat steak and pray” usually isn’t enough when you’re chasing endurance or a leaner power-to-weight ratio. That’s where supplementation comes in, especially injectable when you want plasma levels that actually move the needle.

Carnitine benefits​

  • Fat oxidation & body comp: more fat used for fuel during training, easier to peel fat while protecting lean mass.
  • Glycogen sparing: shifts energy toward fats.
  • Recovery: less oxidative stress and soreness, better blood flow, faster turnaround between sessions.
  • Anaerobic assist: less muscle damage means more reps and volume over time.
  • Cardio support: cardiac muscle runs better on fats too.
  • Brain perks (ALCAR): Acetyl-L-Carnitine can cross into the brain, supporting acetylcholine, focus, and mental clarity.
  • Metabolic help: better insulin sensitivity and lipid handling.
  • Fatigue syndromes: mitochondria run cleaner; some people with CFS/fibro report less fatigue and brain fog.

Oral vs injectable Carnitine​

  • Bioavailability: oral is low (5–18%), due to first-pass metabolism. Injectable bypasses the gut and hits the blood hard.
  • Onset: oral peaks after hours. Injectable is felt within minutes.
  • GI tolerance: oral can annoy your stomach at higher doses. Injectable avoids that but can irritate the site if you’re sloppy.
  • Use-case: if you want real, acute performance or fat-use effects around training, injectable wins.

Dosage​

  • 500–2000 mg/day.
  • Timing: 30–60 min pre-cardio on cutting phases, or morning fasted for general energy support.
  • Rotate injection sites.

What Carnitine is not​

It’s not a fat burner you “feel.”
It won’t out-perform a trash diet or lazy programming. If your sleep and protein are clownish, start there.
 

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