Drug Purity Report Week 31, 2026

Drug Purity Report #31/26. We are back with another summary of the “last week on drugs”, the blog post series by PRO Test dedicated to reporting on drug market purity. This week we got more PMMA, cathinones and synthetic cannabinoids.

Data fatigue is real, so here we come to give you the gist of what’s going on out there. For more details, photos, and other information on thousands of drugs, head out straight to the DrugsPRO app.

PMMA is still around
- The danger of finding PMMA in an Ecstasy pill remains relatively high. After multiple samples confirmed earlier this year now also a red-purple Red Bull pill containing 59 mg of PMMA was found in Vienna. PMMA is a hardly enjoyable substance, responsible for multiple deaths, but is also fortunately easy to spot using an MDMA test kit.
Synthetic cathinones
- The seek for 4-MMC replacement and obvious issues with availability are prevalent throughout Europe. People who tested samples assumed to be Mephedrone last week found 4-CMC and NEP. The latter, NEP, being much stronger (and not characterised as serotonergic), with particularly high overdose potential. Interestingly NEP was found pressed in same looking pill as the red-purple PMMA Red Bull.
Synthetic cannabinoids
- 1 sample from Austria was found with not 1, but 4 different synthetic cannabinoids. Although testing cannabis products is less common than e.g. powders, anecdotally the market has been increasingly saturated with synthetic cannabinoids at an astonishing rate. This can be attributed nowadays mostly to the availability of cheap and legal CBD and the unfortunate ignorance of most consumers, making deception easy. The risk for cannabis users is high. With fully synthetic cannabinoids (e.g. MDMB-INACA) posing an actual threat to life and kidneys, and semi synthetics (e.g. HHC-O) being at least unpredictable, testing cannabis products before use is a must – and costs pennies.

Last Week at a Glance

60 samples from 6 countries (Austria, France, Germany, Slovenia, Spain and Switzerland) were included this week.
52 samples contained a quantified result, including 25 pills and 1 LSD sample.
16 samples contained more than one detected ingredient.
Amphetamine median purity/content is 88%, compared with 38% in the yearly reference period.

Key Purity Differences

Amphetamine median purity/content is 88%, compared with 38% in the yearly reference period.
Mephedrone median purity/content is 54%, compared with 88% in the yearly reference period.
MDMA median purity/content is 160mg, compared with 160mg in the yearly reference period.

Purity and Content

Median quantified results for 27 July–2 August 2026. The yearly reference is shown in parentheses where sufficient comparison data is available.

Samples	Substance	Typical purity / content
21	MDMA	*160mg (160mg)** Middle 50%: 143–177mg ▼
5	Cocaine	*86% (86%)** Middle 50%: 50–93% ▼
3	Amphetamine	*88% (38%)** Middle 50%: 47–88%
3	Mephedrone	*54% (88%)** Middle 50%: 31.5–75% ▼

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, 1,627 mixed samples contained 129 distinct additional ingredients.

Samples	Additional ingredient	Share of substance mixtures	Most often found with
565	Caffeine	84.5% of amphetamine samples	Amphetamine, Heroin, MDMA
217	Unknown	21.5% ▼ of MDMA samples	MDMA, Mephedrone, 2C substances
148	Paracetamol	82.3% ▲ of heroin samples	Heroin, Cocaine, Ketamine
111	Iso-LSD	94.9% ▼ of LSD samples	LSD
97	MDMA	44.7% ▲ of ketamine samples	Ketamine, 2C substances, Amphetamine
96	4-CMC	38.4% ▼ of mephedrone samples	Mephedrone, MDMA, Ketamine
86	Procaine	34.5% ▲ of cocaine samples	Cocaine, Ketamine, MDMA
83	Ketamine	18.3% ▲ of MDMA samples	MDMA, Amphetamine, Cocaine
63	2-MMC	15.7% ▲ of mephedrone samples	Mephedrone, MDMA, Ketamine
57	Phenacetin	17% of cocaine samples	Cocaine, Heroin, Ketamine
43	Levamisole	17.9% of cocaine samples	Cocaine, Ketamine
38	4-BEC	22.1% ▼ of mephedrone samples	Mephedrone
37	Amphetamine	6.8% ▲ of MDMA samples	MDMA, Ketamine, Cocaine
36	Cocaine	13.2% ▼ of ketamine samples	Ketamine, Heroin, MDMA
32	2C-B	9.3% ▲ of MDMA samples	MDMA, Ketamine, Amphetamine
29	DPIA	8.5% of amphetamine samples	Amphetamine
28	4-MMC	6.1% ▼ of MDMA samples	MDMA, Ketamine, Cocaine
23	1-PEA	6.5% of amphetamine samples	Amphetamine, MDMA
17	3-CMC	2.5% ▲ of MDMA samples	MDMA, Mephedrone, Methamphetamine
17	Tetramisole	7.2% ▲ of cocaine samples	Cocaine

▲/▼ 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), 2C-B (1), Caffeine (2), Ketamine (1), Unknown (1)

Amphetamine: 1-PEA (1), Caffeine (2), DPIA (2)

Cocaine: Caffeine (1), Levamisole (1), Phenacetin (1), Procaine (2)

Ketamine: 2C-B (1), Caffeine (1), MDMA (1), Unknown (1)

2C substances: Caffeine (1), Ketamine (1), MDMA (1), Unknown (1)

Mephedrone: 4-CMC (1), NEP (2)

Remaining detected substances: 2-MMC (3), 3-CMC (2), 4-CMC (5), 5F-Mdmb-Pinaca (1), Adb-4En-Pinaca (1), Amt (1), Caffeine (1), Codeine (1), Mdmb- 4En-Pinaca (1), Mdmb-Inaca (1), Morphine (1), NEP (4), Noscapine (1), Papaverine (1), PMMA (1), Procaine (1), Thebain (1), Unknown (4)