It seems that Benfotiamine (none of the other tiamines are over the counter in Germany) had a similar effect on me. I feel a lot better now, whereas before I would feel constantly tired. Before I felt like I could not do anything most of the time without taking stimulants. Now my default is probably more than 50% towards what I felt like on a medium stimulant dose. I did try a lot of interventions in the same time period, so I am not sure how much Benfotiamin contributed on its own, but I expect it to contribute between 25-65% of the positive effects. I also figured out that I am borderline diabetic, which is evidence in favor of Benfotiamine being very significant.
It seems that Benfotiamine (none of the other tiamines are over the counter in Germany) had a similar effect on me. I feel a lot better now, whereas before I would feel constantly tired. Before I felt like I could not do anything most of the time without taking stimulants. Now my default is probably more than 50% towards what I felt like on a medium stimulant dose. I did try a lot of interventions in the same time period, so I am not sure how much Benfotiamin contributed on its own, but I expect it to contribute between 25-65% of the positive effects. I also figured out that I am borderline diabetic, which is evidence in favor of Benfotiamine being very significant.