Psychedelics may cause slight personality changes, but other factors play a big role

September 2, 2026 - 10:37

A new study tracking German college students found that those who used psychedelics for the first time reported modest increases in openness over a twelve-month period. But the researchers behind the work caution that these changes are small and may not come directly from the substances themselves.

The study followed a group of young adults who had no prior history with drugs like LSD or psilocybin. Those who tried them during the year scored slightly higher on measures of openness to experience by the end of the study. Openness is a personality trait linked to creativity, curiosity, and a willingness to embrace new ideas.

Still, the authors point out that the effect was minor. More importantly, they suggest that people who choose to experiment with psychedelics in the first place may already be more inclined toward novelty and exploration. That underlying tendency, rather than the drug's chemical action, could explain the personality shift.

The findings add to a growing but still uncertain body of research on psychedelics and personality. Earlier studies have suggested that these substances might produce lasting changes in traits like openness, especially when used in therapeutic settings. But those studies often involved guided sessions with clear intentions, which is very different from casual recreational use among students.

The new research does not dismiss the possibility that psychedelics can influence personality. Instead, it highlights how difficult it is to separate the drug effect from the mindset and lifestyle of the user. For now, the takeaway is simple: if you are curious about trying psychedelics, do not expect them to rewrite your character. Any small shift you notice might just be a reflection of who you already are.