Yes I do now feel the effects of taking this, my energies are much better now, even on a morning where normally everything is slower, it's the little things that are improving that you wouldn't nessarily notice. It's took 2 to 3 weeks I'd say but definitely worth it and would recommend anyone to take this. I tend to take it every 2 days rather than daily as sometimes I can get a bit of nausea occasionally and constipation although not that often. But overall very pleased.