 SCP-13 is the collective designation of 242 cigarettes, which display similar anomalies. The most common external detail between instances is the presence of the words Blue Lady, hand written on each cigarette in blue ink. Subjects who consume the contents of SCP-13 through inhalation will begin to perceive themselves as a specific unidentified woman. Subjects have described the woman to be aged between 25 and 35 years old. Shortly after consuming an instance of SCP-13, subjects will gradually begin to perceive reflections of themselves as having the features of the woman, and will gradually perceive their bodies changing to reflect her appearance over the course of the following weeks.