Synaesthesia (also spelled synesthesia or synæsthesia) can be described as a blending, merging or mixing of the senses. For example, during this experience a person may begin seeing music, tasting colors, hearing smells or any other potential combination of the senses. At its highest level, synaesthesia becomes so all-encompassing that each of the senses become completely intertwined with and experienced through all of the other senses. This is a complete blending of human perception and is usually interpreted as extremely profound when experienced.

This effect is triggered spontaneously within most of the classical psychedelics. It is seemingly more common on stimulating psychedelics such as LSD or the 2C-x family.

psychoactive substances

Compounds which may cause this effect commonly include:

1P-LSD, 25B-NBOH, 25C-NBOH, 25C-NBOMe, 25D-NBOMe, 25I-NBOH, 25I-NBOMe, 25N-NBOMe, 2C-B, 2C-D, 2C-E, 2C-I, 3-MeO-PCE, 3C-E, 4-AcO-DMT, 4-HO-MET, 4-HO-MiPT, AL-LAD, ALD-52, Ayahuasca, Cannabis, DMT, DOB, DOC, DOI, DOM, DPT, Deschloroketamine, Dextromethorphan, ETH-LAD, Ibogaine, Ketamine, LSD, MET, Mescaline, Nitrous, PRO-LAD, Psilocin, Psilocybin mushrooms, Salvinorin A


Documentation written by Josie Kins