About two to four hours after taking Modalert 200, its effects usually peak. Within 30 to 90 minutes, most individuals start to feel more awake. The effects then progressively intensify until they reach a constant high where mental clarity, attention, and wakefulness are at their best. The effects might linger for many hours after the peak, although they gradually diminish. The precise timing may change based on your tolerance, metabolism, and if you've eaten. A somewhat quicker start and earlier peak may result when taking Modalert 200 on an empty stomach.

https://www.smartfinil.net/product/modalert-200/