One of the all-star products that we use, based on how many men re-order this product in so many PD plans. Two large scientific studies show that the effects of using carnitine to treat PD are more helpful than using the drug tamoxifen, the most commonly prescribed medication that is used for treating PD. No wonder many men are excited about using Acetyl-L-Carnitine for their PD. Each capsule contains 500 mcg of pure Acetyl-L-Carnitine.