There are some methods to use LSD. The commonest way is in the shape of a blotter tab. They are little pieces of paper that were infused with LSD. LSD remains a Schedule I controlled material during the US. On the other hand, analysis within the 1950's to 1970's suggested https://medium.com/@LsdWorld/introduction-to-lsd-what-you-need-to-know-e70ffecb3a92