Arginine ethyl ester is best understood by learning how it's composed. Arginine is an amino acid, functioning as a component to build protein in the human body. Ester is an organic substance containing carbon and hydrogen and is created by alcohols and carboxylic acid (esterification). Arginine ethyl ester, obtained from L-arginine, will increase the benefits the body receives because ester is added to it.
There are major differences between L-arginine and arginine ethyl ester. L-arginine is naturally limited because the intestine absorbs so much of this substance that only small amounts are left in your body afterwards, having no added benefit to your body. Also, L-Arginine is incapable of regulating NO2 (nitrogen dioxide) and hemodialation (the regulation of blood flow to muscles). It isn't as effective as arginine ethyl ester at delivering nutrients to your muscles to aid endurance in your workout. In contrast, arginine ethyl ester stays mostly undamaged while traveling through the intestine. This means you'll be able to workout longer with added nutrients to enhance building muscle and increased cellular reparation. With arginine ethyl ester, less is more; a lower dose will provide greater benefits to your body than L-arginine. Although L-Arginine has proven to positively improve your body's ability to heal and develop muscle, you will see and feel a greater difference with arginine ethyl ester.
If you're seeing a doctor for psychiatric reasons or a heart condition, speak with your physician before adding arginine ethyl ester products to your routine.