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  • We don’t offer sessions of ayahuasca or iboga.
  • We don’t recommend centers or people who perform/do sessions.


Carrer de Sepúlveda, 65 , Oficina 2, 08015 Barcelona España +34 931 88 20 99

Rafael Guimarães dos Santos


Rafael Guimarães dos Santos, Ph.D. In his M.Sc. in Psychology, he investigated the acute effects of ayahuasca on psychometric measures of anxiety, panic-like, and hopelessness in Santo Daime members. In his Ph.D. thesis in Pharmacology, directed by Dr. Jordi Riba, he compared the acute subjective and physiological effects of ayahuasca with those produced by d-amphetamine, and also investigated the pharmacology of two repeated doses of ayahuasca.