Dosing guidance tells you what people should do. Nobody really knows what people actually do: how much they take, whether they know the number, what they mix, and what happens next. This survey asks.
20 questions, about 4 minutes, all optional except your age. Most of them are about the last time you took MDMA, because that gives far more honest answers than "usually". It runs from 29 October 2026 to 10 January 2027, and we publish the results here afterwards.
How your answers are kept: no name, no email, no IP address. We store the answers with the date only, not the time. Nothing you answer is sent to our analytics. If you want the results by email, you can leave an address at the end, and it is stored by our email provider separately from your answers, so the two can never be matched.
For adults who have already used. Nothing here encourages use, and the lowest-risk option is always not to use.
This survey is for adults only.
Nothing you selected was sent. If you want to understand the risks, the emergencies page and the start here guide are open to everyone.
Thank you. Your answers are in.
Want the results when they are out? Leave an email below. It is stored separately from your answers and cannot be linked to them.
Know someone who should answer too? Send them this page. The more people take part, the more useful the results.
More on how we handle data: privacy. Looking for a dose range now? Use the dose calculator.