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    Empathogen Scale

    35 substances mapped across empathogen dimensions

    Empathogen Intensity Spectrum

    0 — None 5 — Moderate 10 — Extreme
    1 Threshold

    Barely perceptible effects that may be placebo.

    2 Light

    Subtle effects that are clearly present but mild.

    3 Light+

    Noticeable effects that remain easy to manage.

    4 Moderate

    Clearly defined effects that shape the experience.

    5 Moderate+

    Pronounced effects that are hard to ignore.

    6 Strong

    Dominant effects that strongly influence the experience.

    7 Strong+

    Powerful effects that can become overwhelming at times.

    8 Intense

    Very powerful effects approaching peak intensity.

    9 Intense+

    Near-maximum intensity with little room above.

    10 Extreme

    Maximum intensity — effects dominate the experience entirely.

    All Substances

    Showing 5 of 35
    # Substance Intensity Reports
    1 MDMA 8.6 Intense+ 2212
    2 Methylone 9.7 Extreme 167
    3 4-MMC 6.7 Strong+ 148
    4 Ayahuasca 9.1 Intense+ 141
    5 5-MeO-AMT 9.4 Intense+ 136
    6 MDA 9.1 Intense+ 119
    7 5-MeO-MiPT 10.0 Extreme 105
    8 5-APB 10.0 Extreme 89
    9 4-FA 10.0 Extreme 57
    10 MDAI 9.7 Extreme 41
    11 Butylone 8.7 Intense+ 31
    12 5-MAPB 10.0 Extreme 21
    13 3-MMC 9.6 Extreme 17
    14 5-APDI 5.1 Moderate+ 16
    15 Ethylone 6.0 Strong 13
    16 Psilocin 5.4 Moderate+ 12
    17 MDEA 6.1 Strong 9
    18 Aet 4.4 Moderate 7
    19 5-IT 4.1 Moderate 4
    20 ALEPH 6.1 Strong 3
    21 Yopo 4.6 Moderate+ 3
    22 4-FMA 6.1 Strong 2
    23 4-MTA 5.0 Moderate+ 2
    24 5-APDB 4.1 Moderate 2
    25 5-EAPB 6.1 Strong 2
    26 6-APDB 8.7 Intense+ 2
    27 6-MAPB 4.1 Moderate 1
    28 Dimemebfe 5.1 Moderate+ 1
    29 4-CBC 7.1 Strong+ —
    30 4-FPP 5.4 Moderate+ —
    31 5-IAI 5.9 Strong —
    32 5-MAPDB 6.3 Strong —
    33 6-EAPB 4.1 Moderate —
    34 HOT-7 4.7 Moderate+ —
    35 MDPA 4.6 Moderate+ —