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Drug Purity Update Week 29, 2026

DrugsPRO sample 20260714SP3_f

Drug Purity Update #29/26. Welcome to the first “last week on drugs”, a new blog post series by PRO Test dedicated to reporting on drug market purity. After creating the DrugsPRO app, we have realised that browsing all of the available data can be challenging. Therefore in this series of articles we will post updates, summaries and comments on the current state of drug quality, particularly in Europe.

Expert Comment

 

  • Cocaine
    • Samples tested in Vienna proved to be of low quality, and more classic purity than the 80%+ medians which recently dominate cocaine lab reports. Detected impurities were Caffeine, Levamisole, Phenacetin and Procaine, and median purity was just 38%. Definitely a familiar issue among people who use cocaine.
  • Mephedrone
    • The 4-MMC situation continues to deteriorate, with increasing prevalence of less seeked out cathinones sold as mephedrone, such as 2-MMC, 3-CMC, 4-CMC, 4-BEC, NEP, both pure and mixed. Having said that, 4-MMC remains available, and interestingly is being pressed into pills more frequently. This might signal a broader shift towards marketing cathinones more aggressively to the general population.
  • Pink craze
    • Roughly half of the pills tested were pink. Pink pills and powders remain to appear popular. This week’s featured image portrays the 4-CMC pill “Lisa Simpson”. It is often accompanied by 4-CMC pills “Bart Simpson”.

Last Week at a Glance

  • 68 samples from 4 countries (Austria, France, Slovenia and Spain) were included this week.
  • 58 samples contained a quantified result, including 32 pills and 3 LSD samples.
  • 20 samples contained more than one detected ingredient.
  • Cocaine median purity/content is 38%, compared with 86% in the yearly reference period.

Key Purity Changes

  • Cocaine median purity/content is 38%, compared with 86% in the yearly reference period.
  • Mephedrone median purity/content is 49%, compared with 88% in the yearly reference period.
  • LSD median purity/content is 88µg, compared with 65µg in the yearly reference period.

Purity and Content

Median quantified results for 13 July–19 July 2026. The yearly reference is shown in parentheses where sufficient comparison data is available.

Samples Substance Typical purity / content
27 MDMA 154mg (158mg*)
Middle 50%: 120–179.5mg ▲
7 Cocaine 38% (86%*)
Middle 50%: 32–55.5% ▼
5 2C substances 14mg (11mg*)
Middle 50%: 11–16mg ▲
4 Mephedrone 49% (88%*)
Middle 50%: 20.5–75.3% ▲
3 LSD 88µg (65µg*)
Middle 50%: 86–88µg

How to read this: Bold = this week’s median (typical) result; “Middle 50%” = half of the results; (*) = median from the last 365 days; ▲/▼ = higher/lower than last week.

Most Common Adulterants and Other Impurities

Across the last 365 days, 1,363 mixed samples contained 120 distinct additional ingredients.

Samples Additional ingredient Share of substance mixtures Most often found with
506 Caffeine 84.5%
of amphetamine samples		 Amphetamine, MDMA, Heroin
195 Unknown 19.5% ▲
of mdma samples		 MDMA, Mephedrone, 2C substances
98 Iso-Lsd 93.3% ▲
of lsd samples		 LSD, Ketamine
84 Paracetamol 76% ▲
of heroin samples		 Heroin, Cocaine, 2C substances
80 MDMA 44.3% ▼
of ketamine samples		 Ketamine, 2C substances, Amphetamine
77 4-CMC 38.8% ▼
of mephedrone samples		 Mephedrone, MDMA, Ketamine
74 Procaine 33.3% ▼
of cocaine samples		 Cocaine, Ketamine, MDMA
73 Ketamine 19% ▲
of mdma samples		 MDMA, Amphetamine, Cocaine
56 2-MMC 15.8% ▲
of mephedrone samples		 Mephedrone, Ketamine, MDMA
43 Levamisole 20% ▲
of cocaine samples		 Cocaine, Ketamine
42 Phenacetin 16.2% ▲
of cocaine samples		 Cocaine, Heroin, Ketamine
36 4-BEC 23.7% ▼
of mephedrone samples		 Mephedrone
35 Amphetamine 8% ▼
of mdma samples		 MDMA, Ketamine, Cocaine
31 Dpia 9.3%
of amphetamine samples		 Amphetamine, Ketamine
28 Cocaine 14.4% ▲
of ketamine samples		 Ketamine, MDMA, Amphetamine
27 2C-B 10.2% ▲
of mdma samples		 MDMA, Ketamine, Amphetamine
23 4-MMC 5.8% ▲
of mdma samples		 MDMA, Ketamine, Amphetamine
21 1-PEA 6%
of amphetamine samples		 Amphetamine, MDMA
18 Tetramisole 8.6% ▼
of cocaine samples		 Cocaine
14 3-CMC 3.9% ▼
of mephedrone samples		 Mephedrone, MDMA, Methamphetamine

▲/▼ shows whether its share in the rolling 365-day data increased or decreased since last week. No arrow means no change or no comparison.

Impurities Detected This Week

MDMA: 2-MMC (1)

Amphetamine: Caffeine (3), Dpia (1), Unknown (1)

Cocaine: 2-MMC (1), Caffeine (2), Levamisole (1), Phenacetin (1), Procaine (5)

Ketamine: 2-MMC (1), Unknown (1)

2C substances: L-Glutamina (1)

Mephedrone: 4-BEC (2), NEP (2)

Remaining detected substances: 2-MMC (2), 3-CMC (1), 4-CMC (7), Iso-3-Cmc (1), NEP (2), Unknown (1)

Data Sources

This report is based on drug-checking data published by: checkit.wien, drogart.org, drogenarbeitz6.at, drugchecking.berlin, druglab.fr, energycontrol.org, safezone.ch, Trimbos, wedinos.wales.

All of this data is available at your fingertips in the DrugsPRO app for Android, iOS, and the web.

Drug-checking results describe tested samples only and are not representative of the entire market.


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Drug Purity Update: Week 29, 2026
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