A conservative dosage estimate when taking Alpha GPC as a general nootropic supplement is to take 1-2 300mg capsules in the morning. This dosage can be repeated in the afternoon if necessary.

While there is no real consensus on an optimal dose, and no health organizations have provided any dosage guidelines it is generally not recommended to exceed a dosage of 1200 mg per day.

When used at moderate doses of less than 1200 mg per day, and less than 600 mg taken at any one time Alpha GPC is extremely well tolerated and rarely are adverse side effects present. Some people have reported minor side effects including heartburn, insomnia, and dizziness. Consult your physician before taking this product.