Effect Index, which is currently under construction, is a resource dedicated to establishing the field of formalised subjective effect documentation. It is the home of the Subjective Effect Index (SEI), which contains 242 effect descriptions that exist to serve as a comprehensive map of all potential experiences that can occur under the influence of any class of psychoactive compound, particularly hallucinogens.

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Substance Summaries

Hallucinogenic substance classes, broken down and described
For more, see the Substance Index.

Featured Article

Analyses that go beyond individual subjective effects

These are scientifically-supported therapy principles and techniques designed to be easily understood by the general public. Even in the absence of hallucinogens, applying these skills to modify automated dysfunctional cognitive processes can be as effective as lone pharmacological treatments or the entire collection of cognitive behavioral therapy instruction.

For more, see the articles section.

Featured Reports

Recommended firsthand accounts of hallucinogenic experiences
2.5g Syrian Rue / 6g Mimosa hostilis rootbark Oral
10 mg Intranasal
by Kaylee
50mg Smoked
60mg Oral
70 mg oral
by Kaylee
by nervewing
50mg Intranasal
25mg Oral
For more, see the reports section.