Researchers in South Korea have unveiled a breakthrough medical spray that can stop severe bleeding in just one second.

The innovation could change how doctors and emergency responders handle deep and uneven wounds in critical situations.

Scientists at the Korea Advanced Institute of Science and Technology (KAIST) have developed a new medical powder known as AGCL Powder. It is a next-generation hemostatic agent, designed to stop bleeding almost instantly when applied directly to a wound.

Unlike traditional methods that may take time or require pressure, this spray works within seconds. Once it comes into contact with blood, it immediately begins to seal the injury.

How AGCL powder works

When AGCL Powder is sprayed onto a wound, it reacts rapidly with calcium ions present in the blood. This chemical interaction triggers the powder to transform into a strong hydrogel layer.

Within just one second, the hydrogel forms a solid physical barrier over the wound. This barrier effectively seals the injury, preventing further blood loss even in deep or uneven wounds.

Designed for safety and versatility

The spray is made from natural and biocompatible materials, making it safe for medical use. Researchers say it also has antibacterial properties, which adds an extra layer of protection against infection.

Because it can adapt to irregular wound surfaces, the spray is especially effective where traditional bandages or gauze may fail.

Built for extreme conditions

One of the most notable features of AGCL Powder is its durability. The product remains effective for up to two years, even when stored in extreme temperature or high-humidity environments.

This makes it particularly useful for battlefields, disaster zones, and emergency medical settings, where conditions are often unpredictable and resources limited.

Uncontrolled bleeding is one of the leading causes of death in traumatic injuries. A fast-acting, portable solution like AGCL Powder could significantly improve survival rates in emergencies where every second counts.