I've been taking it with my coffee for less than a week so it's still early days. I haven't noticed a dramatic difference yet, but I do feel like I can focus better and I don't get jittery when I drink coffee anymore. Heads up the first time I took it I felt a bit sleepy, but that went away quickly. I started taking it because a lot of people use it for stress management and weight loss. L-theanine is known for helping with relaxation, reducing anxiety, and improving sleep, while L-tyrosine supports focus and mental clarity during stressful situations. Some studies also suggest L-theanine may help reduce cortisol spikes, which is a bonus if you're dealing with stress-related issues. Together with caffeine they're supposed to give you a calm, focused energy without the crash. I'll keep using it and update this review once I've had more time with it.
4.8
