Pure voluntarism is the claim that we have the same voluntary control over intentions as we do decisions. The Toxin Puzzle is often taken to challenge pure voluntarism by supporting a reasons constraint on intentions. According to this constraint, one cannot voluntarily intend to do something that one lacks a practical reason to do. We present the results of three experiments stemming from this puzzle demonstrating that the concept does not support a reasons constraint and suggests that intentions are regarded (...) as voluntary to the same degree that decisions are. (shrink)