Why is it better not to take 4-MMC soon after ecstasy?

Both substances have an effect on the serotonin balance in your body. As a result, you quickly build up a tolerance if you use it within a few weeks. You will also experience more adverse long-term effects such as brain damage and depressive symptoms. Make sure that you always give your body time to let the serotonin balance recover and do not use substances that have an impact on your serotonine balance more often than once every 6-8 weeks.