Protak Enzyme Indicators

Protak Scientific is the world’s only manufacturer of Enzyme Indicators (EI’s)

Developed over the last fifteen years as a rapid microbial method (RMM) of measuring the efficacy, distribution, and performance of cold process decontaminations such as hydrogen peroxide (vH2O2, VHP, HVP, iHP) Ethylene Oxide etc.

As a direct alternative to traditional biological indicators.

EI’s are inexpensive and carry a low risk for adoption and swiftly return the initial investment with significantly improved quality control and validation. This in turn advances decontamination validation and can remove “run to fail” from a process.

The Enzyme Indicator


  • Takes just 60 seconds
  • No Incubation
  • No delay
  • Immediate results

Real numbers

  • Quantifiable data
  • Quantitate numerical scale
  • Correlated to Biological


  • Built in safeguards
  • Continuous checking and
  • validation of EI’s
  • Positive and negative controls

Digital data

  • No manual interpretation
  • Greatly reduced manual recording
  • Simple to use
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