Ok, this is my experience of 3mmc/icecream First let me describe myself. I am a 25 year old male, weighing about 65kg, 175cm tall. My usage was mainly nasal, oral only a couple of times. I started using ice about 2 months ago. The nasal dosage was always from about 100mg to 200mg.
3-MMC
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 4 corroborating sources
- 3 ROAs with full dose ladders
- duration data present
- 18 combo interactions documented
- PubChem toxicity data
- classified Research-chemical
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 4 corroborating sources
- 3 ROAs with full dose ladders
- duration data present
- 18 combo interactions documented
- PubChem toxicity data
- classified Research-chemical
Aliases: 3m, Meow, Mcat, 3-meph, Metaphedrone, 3mmc, 3-methylmethcathinone, 3methylmethcathinone, 3-mephedrone
Summary
3-MMC is a structural isomer of mephedrone created as a legal replacement after 4-MMC prohibition. It acts as both a reuptake inhibitor and releasing agent for dopamine, norepinephrine, and serotonin, with stronger dopaminergic and noradrenergic activity than mephedrone. Insufflation causes significant nasal discomfort.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 50-150mg | 150-250mg | 250-350mg | 350mg+ |
| Insufflated | 20-40mg | 40-60mg | 60-120mg | 120mg+ |
| Intravenous | 10-25mg | 25-50mg | 50-100mg | 100mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 10-30 min | 30-60 min | 2-3 hrs | 60-90 min | 4-7 hrs |
| Insufflated | 5-10 min | 10-20 min | 60-90 min | 1-2 hrs | 4-7 hrs |
| Vaporized | 0-1 min | 1-2 min | 60-90 min | 1-2 hrs | 4-7 hrs |
| Intravenous | - | - | 60-90 min | 1-2 hrs | 4-7 hrs |
Effect Profile
26 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Empathogen
9.6
Extreme
10/10
Strong empathy, euphoria, and sensory enhancement with moderate stimulation
Empathy / Social Openness
×3
10
empathy enhancement
empathy, affection and sociability enhancement
sociability enhancement
affection enhancement
increased sociability
Euphoria / Mood Elevation
×2
10
physical euphoria
euphoria
cognitive euphoria
mood lift
Stimulation
×1
7
stimulation
wakefulness
teeth grinding
increased heart rate
Sensory Enhancement
×1
10
tactile enhancement
colour enhancement
visual acuity enhancement
increased libido
Stimulant
5.1
Moderate+
5/10
Strong euphoria and anxiety/jitters with mild stimulation, low focus
Stimulation / Energy
×3
5
stimulation
wakefulness
Euphoria / Mood Lift
×2
10
physical euphoria
euphoria
cognitive euphoria
mood lift
motivation enhancement
Focus / Productivity
×2
3
motivation enhancement
thought acceleration
Anxiety / Jitters
×1
10
anxiety
teeth grinding
increased heart rate
vasoconstriction
sweating
Based on reports from:
Tolerance
Build-up
develops rapidly, often within a single session; compulsive redosing common
Reset
a few days for acute tolerance
Tolerance Decay
Full tolerance
1h
Half tolerance
7d
Baseline
~14d
Acute tolerance: develops within a single session β the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Aggregated from 17 Erowid and 9 Bluelight experience reports
Positive Effects 16
Euphoria
73.1%
84%
Stimulation
57.7%
85%
Empathy
50.0%
83%
Sociability Enhancement
44.4%
81%
Body High
44.4%
85%
Contentment
33.3%
92%
Thought Acceleration
33.3%
75%
Focus Enhancement
30.8%
78%
Tactile Enhancement
29.4%
70%
Music Enhancement
26.9%
85%
Tingling
22.2%
88%
Joy
22.2%
85%
Libido Enhancement
22.2%
85%
Introspection
17.6%
70%
Orgasm Enhancement
11.1%
80%
Enhanced Colors
11.1%
75%
Adverse Effects 20
Insomnia
33.3%
85%
Confusion
29.4%
70%
Muscle Tension
23.5%
70%
Anxiety
23.1%
85%
Irritability
22.2%
82%
Sedation
19.2%
80%
Emotional Blunting
11.1%
65%
Nausea
11.1%
70%
Dry Mouth
11.1%
75%
Metallic Taste
11.1%
80%
Headache
11.1%
70%
Diarrhea
11.1%
75%
Body Load
11.1%
80%
Distractibility
11.1%
80%
Muscle Spasm
11.1%
90%
Dizziness
11.1%
85%
Hot Flashes
11.1%
90%
Cold Flashes
11.1%
85%
Restlessness
11.1%
85%
Sadness
11.1%
80%
Combinations
Cross-Check 3-MMC with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.
Erowid 8 reports 2 positive 4 neutral 2 cautionary visit
My partner and I have now taken it three times a couple of months apart. What we love most about it is now it is simultaneously both so light and yet so profound. It doesnΒt get us high, thereΒs little body load - a bit of jaw clenching and the stimulant effect lasts a few hours after the euphoric part has ended.
I think of myself as an educated, rational-thinking guy, that is very curious in substances that alter the human mind. I try to keep my consumption habits in a moderate range and reflect my drug taking pattern to stay physically and mentally healthy.
I would consider myself a rational scientific-minded young man, with a great interet in mind-altering psychoactive compounds. To this day, I have tried numbers of cathinones such as Hexen (N-ethyl-hexedrone), NDH, 3-FPM and others, though I prefer psychedelics to cathinones and other speed-like substances.
First Trial of 3-MMC 7:18 Intake of 400mg of 3-MMC at home before leaving home 7:38: on the bus I feel a surge of energy, I am more alert and not as euphoric as promised I'm on my way to high school classes.
Prior experience: 4-MMC, MDMA, MDA, Meth, Amphetamine, Dexedrine, cocaine etc. This stuff was vile. The vendor has always sold what's advertised in the past however. Sourced early 2020. Prior to this no drugs for over a year except 2.5mg diazepam per day.
The following experience happened a few months ago. I've been a semi-regular drug user over the past few years. Prior to this experience, I've taken 5-MAPB, LSD, cannabis, MDMA, speed, ketamine, and 2C-B, in various doses and settings.
I reluctantly ordered some 3-MMC from an online vendor because I canΒt seem to contain my fascination with the substituted cathinones. This is one of those RCs for which there is very little data, so it is treading on new ground for the most part. Exercising caution is the wise way to go.
Bluelight 8 threads 8 neutral visit
Okay so, still on the comedown right now, so sorry if my words are slightly sporadic. Basically I tried 3-mmc for the first time at a rave a few months ago and I really liked it.
What T 0:00 - 3-MMC 48mg oral T 1:00 - 3-MMC 40mg nasal T 2:15 - 3-MMC 80mg oral Who Sex: Male Weight: 77kg Length: 1.81m What is 3-MMC From what I've red 3-MMC is quite similair to 4-MMC ( Mephedrone ) when it comes to molecular structure and action with as main diffrence that the duration of 3-MMC is significantly sh...
This report is a translation from when I wrote it. Names have been replaced with [X] and I've removed a picture due to privacy reasons. Date: 28-09-2015 Dose: about 100mg nasal (eyeballed, not weighed) + 160mg oral (0.001g scale) Other substances: Alcohol Who: Me, alone Situation: Comfortably in front of my PC while wa...
Hi guys im new to this forum and i guess i just wanted to share my recent experiance after taking MCAT and to warn people but to also compare it with others experiances.
My interest in research chemicals has grown significantly in the last while. Why? Because most drugs that i have access to are shit and ridiculously expensive. Instead of complaining or listening to the complaints of why all research chemicals are shit i thought i would go through one by one and test them.
3-MMC, 150mg oral male, 80kg, 40y., exp. female, 50kg, 35y, med. exp. story: our baby giraffe found a bag labelled "3-mmc" on her daily walk. she heard, that that substance would be similar to 4-mmc, which she liked very much. secretly we stole it from her pocket and decided to have it for ourselves.
I won't bore you with all the drugs I've done, but I have done MDxx, amphetamine, methamphetamine, 4-MMC, aPVP, MDPV, JWHs, LSD, shrooms, weed, IV coke, crack, heroin, other opiates, DXM, 2C-Xs, benzos, MPH, EPH, 5-MAPB, TMA-2, TMA-6, GHB, ketamine, MXE, AMT, DMT, and various other tryptamines.
After my first experience a few days before, at 1, 10, 20, 30mg orally over about 3 hours or so, totalling 60mg (which was surprisingly quite active for such a low dose), I upped the dose a bit over that and started at 80mg this time. On a full stomach this took probably an hour to have an effect.
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