Injectable vs Oral L Carnitine: Which Works Better? AWP L Carnitine injection is recommended at 1 ampule every 2 3 days for best results. The L Carnitine is taken intravenously either by normal injection or using a butterfly needle. After taking this L Carnitine, you Levocarnitine Oral Solution USP (1g per 10mLmulti dose) Low bioavailability = no meaningful effect, Oral L carnitine has very low bioavailability., Most of it isnt absorbed, and even what is doesnt increase fat burning., ., ., ., ., #workout #malayalam What is L Carnitine, L Carnitine is an amino acid that plays a role in energy production and fat metabolism. Its found in foods like red meat, fish, and dairy, and also available as a supplement., Acetyl L Carnitine Study NOW Foods