Skull pill reports can differ in colour, contents and strength. Recorded samples are most often pink (45%), blue (15%) and grey (15%). Of the 20 samples, 12 had a measured MDMA content: from 130 mg to 269 mg, with half coming in above 158 mg and one in ten above 244 mg.
Here you can compare independent laboratory results for 20 photographed samples tested between 2025-09-01 and 2026-08-07 and listed in source records under names such as: Skull, skull, crane, totenkopf, calavera, tete de mort. The photos and reports can help you find visually similar results, but they do not prove that an untested pill comes from the same batch.
Appearance cannot identify a tablet, which is why every sample here was tested rather than judged by eye.
The Skull stamp is used on the illegal market for tablets of different composition. The name, the press and the colour are not reliable marks of a particular batch. Even tablets bought in the same place and looking the same can come from different production runs.
Laboratory results show wide differences in dose, purity and adulterants. A tablet sold as ecstasy can carry an unexpectedly high MDMA dose, other stimulants, or substances that were never declared. That is what raises the risk of overheating, circulatory problems, serotonin syndrome and overdose, and it is exactly what a test answers before anyone takes anything.
A reagent test tells you which group of substances a sample belongs to. How much of it is in the tablet is what a purity or quantity test answers, and a full laboratory analysis names every component. Test a small portion, use more than one reagent, and compare the result with recent laboratory alerts.
Where these results come from
This comparison includes 20 samples tested between 2025-09-01 and 2026-08-07. The most frequently detected substances are: MDMA (17), iso-LSD (2), LSD (2), Amphetamine (1). Laboratory reports come from: checkit.wien, contact-suchthilfe.ch, drugchecking.ch, druglab.fr, energycontrol.org, knowyourstuff.nz, saferparty.ch, triptalks.at.
Disclaimer
The information provided on this page is not intended to promote drug use. Many of the substances mentioned are illegal under national and international law, and possession of these substances is punishable by law. Never assume that a substance is safe. Concentration, purity and adulteration vary greatly, even between samples acquired from the same source or bearing seemingly identical characteristics. Chemical Safety sp. z o.o. strongly advises against the use of any psychoactive substance, legal or illegal. Consuming psychoactive substances is always an avoidable risk to your health.
Information about the ingredients of Skull pills comes from lab and user data. Each result is a warning rather than a guarantee, and no substance is safe by default. Testing the pill in your hand is the part you can control. Get a test kit. Other analyses in the full database.
Each result represents an independently tested sample. A pill's appearance cannot reliably identify its contents or strength.
Testing services and report databases list this design under other names too: Calavera, Crâne, Totenkopf, Tête de mort. They refer to the same logo, not to a different pill.
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No test result can tell you a substance is safe. No substance is 100% safe.This article is published for harm reduction purposes. It does not encourage the use of psychoactive substances and does not replace medical advice.
