Tolerance develops quickly to the results of LSD. After the 3rd or fourth consecutive times of taking LSD, no quantity of the drug can generate the specified consequences. On the other hand, right after a brief period of abstinence (about three to 4 days), tolerance need to return to standard.2 https://www.tumblr.com/lsdvibes/757469871163490305/lsd-guide-understanding-the-market-risks-and?source=share