Modafinil is a prescription neuro-enhancing (eugeroic) medication used to treat concentration issues and sleep disorders such as insomnia, shift-work sleep disorder, daytime sleepiness, narcolepsy, etc.
Modafinil is typically taken once a day due to its half-life of 12-15 hours, and the recommended dose is 200mg.

Benefits of Modafinil :

In the United States, Modafinil is classed as a schedule IV drug. In a recent study on Modafinil usage among teenagers done by a reputable research firm in the United States, over 85 percent of respondents indicated that they could obtain it online without even a prescription due to its widespread availability. Another reason it's more common among individuals who use it off-label as a "nootropic" or "smart drug" to improve their cognitive abilities.

Advantages of Purchasing Modafinil Online :

There are several reasons why people may consider purchasing Modafinil online.

The nootropic tablet is simple to acquire online and has a money-back guarantee.

Modafinil is significantly less costly when purchased online.

Modafinil can be delivered to users' residences.

Users do not need a valid prescription to buy Modafinil online.

When you use cryptocurrencies such as Bitcoin or Altcoin to purchase on websites such as modafinia, you will receive an extra discount.
Reference: https://allmodafinil.com/why-people-buy-modafinil-online/