L-Carnitine 600mg w/B12 or 1000mg (No B12)  x 10ml 
 
L-carnitine is a nutrient that plays a crucial role in energy production by transporting fatty acids into the mitochondria, where they are burned for fuel. The body can produce its own L-carnitine, and most people get enough from a balanced diet. However, it is used as a supplement for specific medical conditions and as a performance enhancer, though some of its uses have mixed evidence.
Heart health: L-carnitine may help improve heart function and reduce symptoms in people with heart conditions like congestive heart failure. Some studies also show it may improve outcomes after a heart attack.
Kidney disease: Patients with chronic kidney disease on hemodialysis often have low L-carnitine levels and may benefit from supplementation.
Male infertility: L-carnitine may improve sperm quality and motility in men with fertility issues.
Diabetic neuropathy: Acetyl-L-carnitine, a form of L-carnitine, may help reduce nerve pain and improve nerve function in people with diabetic neuropathy.
Cognitive function: Acetyl-L-carnitine is sometimes used to support brain health and may help slow the decline of mental ability in people with Alzheimer's disease.
Cancer-related fatigue: L-carnitine has been shown to reduce fatigue in cancer patients who are undergoing chemotherapy and radiation treatment. 
Athletic performance: The evidence is inconclusive as to whether L-carnitine can significantly boost sports performance, endurance, or muscle recovery, though some studies suggest minor benefits.
Weight loss: While L-carnitine plays a role in fat metabolism, its effect on weight loss is modest at best, with some studies showing minimal weight reduction. It is not a replacement for a healthy diet and regular exercise.