Limited time: Order 1S-LSD today and get free discreet shipping.

What is 1S-LSD?

October 5, 2025
Illustration of 1S-LSD molecular structure and lab-themed visuals representing legal psychedelic research in Europe.

1S-LSD is a novel compound in the lysergamide family that has recently gained attention in the field of psychedelic research. Known as a functional analog and prodrug of LSD, 1S-LSD includes a unique chemical modification — a trimethylsilyl group — that sets it apart from its predecessors like 1P-LSD and 1D-LSD. This small structural change has significant implications, making 1S-LSD a legal LSD alternative in countries like Germany.

From a chemical standpoint, 1S-LSD maintains the characteristic ergoline backbone of LSD, which is responsible for its potential psychoactive properties. As a prodrug, it is believed to metabolize into LSD-25 in the body, thereby exhibiting effects similar to classic LSD. However, due to its novel status, comprehensive pharmacological studies are still pending.

In the world of research chemicals, 1S-LSD stands out as an opportunity for scientific exploration without the legal constraints tied to LSD-25. Laboratories and academic institutions have begun examining its binding affinity, onset duration, and metabolic profile to determine how it compares to more established psychedelics.

If you’re looking to buy 1S-LSD for legal research, it’s important to ensure it is sourced from a trusted vendor offering lab-tested, high-purity compounds with full compliance documentation. As the legal LSD landscape evolves, 1S-LSD remains at the forefront of innovation and accessibility in responsible psychedelic research.

Have questions about our products?
Contact us