https://www.predatornutrition.com/articlesdetail?cid=9-mbc-nootropic-reviewan excerpt:
Using 9-Me-BC To Reduce Stimulant ToleranceAs we have touched on, 9-MBC can help regenerate dead dopaminergic neurons. With this in mind, it has promise for playing a part in recovery of the dopaminergic system, which may be necessary following abuse of stimulants such as caffeine.
Many athletes will use periods such as deloads to cut out caffeine when the performance benefit is no longer needed, in the hopes that it will help them resensitise to pre-workout type products. In theory, this may be a great window to use 9-MBC!
Anecdotally, users have reported better results compared to using substances including BPC-157 and Bromantane for the same purpose.