LSD is one of the most potent, mood-changing chemicals.LSD known as "acid" and by any other names,SD is sold on the street in small tablets “microdots”, capsules or gelatin squares (“window panes”). It is sometimes added to absorbent paper, which is then divided into small squares decorated with designs or cartoon characters of loony toons.
This is the image of an LSD: http://cdn.zmescience.com/wp-content/uploads/2016/02/lsd-happy-face.jpg