This independent lab study by the Luxembourg Institute of Science and Technology (LIST) tested the infection-prevention power of DENAA+ Probiotic Patient Bed Cleaning Spray*. 

The goal? To measure how effectively the probiotic cleaner could reduce methicillin-resistant Staphylococcus aureus (MRSA) – a tough, drug-resistant bacteria.

In the test, 100,000 MRSA colony-forming units were placed on a nutrient-free agar surface and treated with the probiotic spray. Within just 22 hours, the bacteria count dropped dramatically – to just 100 units, showing a 99% reduction. This powerful result was only achieved when probiotics were included in the formula. When only the spray’s base ingredients were used (without probiotics), no such reduction occurred.

The study also confirmed that the spray application method did not harm the probiotics' effectiveness. Once active, the probiotics competed with MRSA bacteria and gradually outnumbered them – a process known as bio-competition.

Although traditional disinfectants work faster, probiotic cleaning offers longer-lasting results without contributing to antimicrobial resistance or polluting the environment. It’s a safer, sustainable option – especially valuable in healthcare and hygiene-sensitive spaces.

*DENAA+ Probiotic Patient Bed Cleaning Spray has since been re-branded in a very similar formula as Provilan CLEAN Surface Cleaner RTU spray.