First image of the tested substance
First image of the tested substance
Second image of the tested substance
First image of the tested substance
Second image of the tested substance
Second image of the tested substance

Active ingredients and content


41.6 %


41.5 %

Details of the substance tested


Length x width






Fracture groove

Relevant substance(s)

4-MMC (mephedrone)

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New Psychoactive Substances (NPS)

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Risk assessment

This powder, declared as mephedrone (4-MMC), contains a high quantity of 2-MMC in addition to mephedrone.

2-MMC (2-methylmethcathinone) is a rather new NPS (New Psychoactive Substance) and a cathinone of the amphetamine group. No reliable information is available on its risks, toxicity, side effects and long-term consequences. There is also no information available on possible interactions between the simultaneous consumption of mephedrone and 2-MMC. 2-MMC is often marketed on the Internet as a substitute for mephedrone or 3-MMC. According to user reports, the effect of 2-MMC tends to be compared with 2-FA or amphetamine (performance-enhancing and stimulating), which is why many consumers have experienced a slightly different effect than expected. Thus, in the event of a false declaration, as in this case, there is an increased risk that a high dose of 2-MMC will be consumed unintentionally.

Due to the lack of scientific studies on 2-MMC, we advise against consumption!

With powders and crystalline samples, false declarations occur again and again; it is therefore essential to have these tested before consumption!

Alert level

Safer Use


Have your substances tested in a Drug Checking


If you do not have the possibility to have substances analysed, always test a small amount to avoid overdoses.

Wait and see

Wait 2 hours after oral intake, as there are always powders / crystals in circulation with unexpected active ingredients, which can have a later onset of action.


Always use your own sniffing utensils when applying powders nasally (sniffing) to avoid infecting yourself or others with diseases.

Similar warnings

There are no current warnings for this substance

Things to know