Nootropics, also known as “smart drugs,” have become increasingly popular in recent years for their ability to improve brainpower & boost productivity. Modafinil and armodafinil are two of the most well-known and widely used nootropics on the market. However, with multiple brands available, it can be difficult to determine which one is the best fit for your needs. This guide compares Modalert vs Modvigil vs Artvigil vs Waklert and helps you choose the best nootropic for your goals.