I experimented with nootropics in the past and currently I just stick to vitamin D3 + K2 + Omega 3 (DHA/EPA). In case I need to focus I just add 300/600mg of Al

I experimented with nootropics in the past and currently I just stick to vitamin D3 + K2 + Omega 3 (DHA/EPA). In case I need to focus I just add 300/600mg of Alpha GPC (but I don't use it frequently, once I start to become irritable it means there's enough acetylcholine in my brain).