I recently tried the sample pack from Humans Against Hangovers while recovering from illness, and it was just the pick-me-up I needed. I was away with work and had a busy schedule of meetings; I was struggling to stay alert and hydrated. The sachet provided a gentle, natural boost that helped me power through. It wasn't overly sweet—just light and refreshing and was perfect for regaining some energy during a hectic day or two, I’m glad I had it on hand when I needed it most. If you did happen to feel groggy for any reason (self-inflicted or not), I think it would be a great choice. I'll certainly be trying it again in the future.