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


212.7 µg


12.1 µg

Amphetamine: 10.6 µg

Lisdexamphetamine: quantity not determinable

Details of the substance tested


Length x width

8.9 x 9.2 mm






Fracture groove

Relevant substance(s)

Risk assessment

Over 150 μg of LSD can be too much. High doses increase the risk even for experienced users. Highly intense psychedelic experiences can be induced, which can be disturbing and frightening. Paranoid imaginings can also occur. Furthermore, a so-called oversensitivity can occur. Music, light and other stimuli can be perceived as extremely unpleasant. A body-mind separation can also occur.

In addition to LSD, an undetermined amount of iso-LSD was detected. The non-psychoactive iso-LSD is produced during the synthesis of LSD and indicates improper synthesis. 54.3 % of the LSD felts analyzed in 2023 contained iso-LSD. To date, there is no scientific evidence as to whether iso-LSD can inhibit and/or otherwise influence the effects of LSD. Furthermore, this felt contained small amounts of amphetamine and lisdexamphetamine. In such small doses, these two substances are not perceived.

In 2023, the LSD felts analyzed in the DIZ contained an average of 76.2 μg LSD. However, LSD felts are often declared higher when sold (LSD felts are often sold as 200 μg). Due to these false declarations, most users assume that they are consuming significantly higher doses than they are actually taking.

Alert level

Safer Use


Have your substances tested in a Drug Checking


If you do not have the possibility to have substances analysed, test a quarter or a third of the felt at the most, as felts are in circulation in very different dosages.


Pay attention to set and setting. Consume only in places where you feel comfortable and avoid mixed use.

Wait and see

Wait 3 hours after ingestion, as there are always felts with unexpected active ingredients in circulation, which can have a later onset of action.

Similar warnings

There are no current warnings for this substance

Things to know