Drink-spiking detection nail stickers being introduced in Spain – but there’s an important catch

A Korean-developed decorative nail sticker that changes colour when it detects a drink-spiking drug is heading to Spain, with pre-orders expected towards the end of November. But there’s a catch: it cannot detect every substance used to spike drinks.

The product, called Spy Nails by Freshia, is designed to detect GHB (gamma-hydroxybutyrate), sometimes known as liquid ecstasy. It is a powerful depressant that can cause confusion, memory loss and unconsciousness, but is chemically different from MDMA, commonly known as ecstasy.

The technology comes from South Korean laboratory Philmedi, which has reached a distribution agreement with Valencian company Grupo Lizne. The Spanish business is now preparing to introduce the product to the domestic market, although it is not yet available for general sale.

How Spy Nails detects GHB in drinks

Unlike conventional drink-testing kits, Spy Nails is designed to look like an ordinary decorative nail accessory. Its reactive testing area changes colour from yellow to green when it detects the presence of GHB, according to the company.

The initial collection is expected to feature ten designs, including hearts, stars, flowers, crosses and skulls. The idea is to make the testing feature discreet and easy to carry without requiring users to take a separate piece of testing equipment on a night out.

The concept of incorporating drug detection into beauty products is not entirely new. Euro Weekly News previously reported on early concepts for nail varnish designed to identify drugs in drinks. Spy Nails, however, is a specific product now being prepared for commercial distribution in Spain.

When will the nail stickers go on sale in Spain?

The Spanish launch is still in preparation rather than a nationwide retail release. Manufacturing is under way, and Grupo Lizne expects to begin accepting pre-orders towards the end of November 2026.

Packs are planned to contain ten individual tests, although a confirmed retail price has not yet been announced. The company says it wants to make the product as affordable as possible.

Grupo Lizne is pursuing distribution agreements with pharmacies, para-pharmacies, perfumeries and household goods shops. Music festivals, universities, nightlife venues and online retailers are also being considered.

Another proposed outlet is Spain’s network of Puntos Violeta, or Purple Points. These are designated information and support spaces where women can seek assistance in situations involving gender-based violence or harassment, including at public events.

Grupo Lizne hopes to distribute more than 500,000 units during its first 12 months in Spain. This is the company’s target, rather than a confirmed order or sales figure.

The important limitation buyers need to know

The colour-changing technology has a specific purpose: detecting GHB. It should not be mistaken for a universal drink-spiking test.

Other drugs and substances can be used to tamper with drinks, and Spy Nails is not designed to identify all of them. A sticker that remains yellow therefore cannot establish that a drink is safe.

Spain has already seen other approaches to drink-testing technology. Euro Weekly News previously shone a light on drug-detection wristbands trialled at Malaga Fair. Those devices use reactive sensors to test for several substances, including GHB, ketamine, methamphetamines and scopolamine. Their different detection capabilities underline why consumers need to understand precisely what each product can identify.

Independent testing data has not yet been published, so the stickers should be treated as an extra precaution, not a guarantee that a drink is safe

More products planned by the Spanish distributor

Grupo Lizne is already looking beyond the initial nail-sticker collection. The company is considering other accessories incorporating similar detection technology, including festival wristbands and mobile phone accessories.

A mobile application is also being explored, with the proposed option of allowing users to share their location voluntarily with trusted contacts when they are out.

Another approach to the problem has been covered by EWN in its report on NarXcup, the innovative ice-cube device designed to react to certain drugs in drinks. Unlike Spy Nails, NarXcup currently targets scopolamine, demonstrating how different detection products are being developed to identify different substances.

Grupo Lizne’s immediate priority is getting Spy Nails by Freshia into the Spanish market. If the distribution plans progress as expected, the product could give anyone wanting to socialise safely another way to check for GHB when enjoying Spain’s nightlife and festivals.

To learn more about Spy Nails you can visit their official website.