Overview

• The silicone-embedded sticker turns red within one second upon contact with GHB at concentrations as low as 0.01 µg/mL in beverages including whiskey, vodka, beer, soju and coffee.
• Users can retain visible proof of drug exposure for up to 30 days, supporting both immediate warnings and later evidence gathering.
• A newly formed South Korean venture is scaling up production and targeting a limited rollout later this year following additional development.
• Each sticker design requires a custom mold and specific chemical receptor, which currently restricts shape options and single-drug detection.
• Forensic experts caution that spot tests may yield false positives and call for expanded validation and receptor development for other substances.