No "spike and crash" side effects...
I took 2 capsules every morning or in late afternoon prior to a gym visit.<br />I felt slightly more alert in the mornings, when I'm usually very sluggish. Moderately enhanced performance/endurance, specifically for cardio and cross fit type workouts. No strength increases.<br />The best thing I can say is, there is no tachycardia or edgy jitters. It could possibly keep your brain churning at bedtime if your not exhausted or use to supplements.
Rating: 3 stars