Nutracology L Carnitine 1000mg Capsule: Buy bottle of 90.0 capsules at in India 1mg Carnitine: Top 3 Anti Aging Benefits of This Super Nutrient 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 L carnitine is a naturally occurring amino acid structure that is made in the human brain, liver, and kidneys. L carnitine plays a critical role in energy production, as it converts fat into energy. Acetyl L Carnitine Force Factor