What do each of the colors mean?

PrettyLitter reacts to the pH of your cat's urine. When urine comes in contact with our litter, the crystals can change color based on certain acidity and alkalinity levels.

There are 4 primary ranges or “hues” used as indicators for health monitoring:


Want to test your litter?

  • Tap water has a typical pH in the green to yellow range
  • Vinegar is acidic (outside the normal range) and will show orange
  • Ammonia is alkaline (outside the normal range) and will show blue
  • Because our litter is white, blood in urine appears red and is easy to spot

For our color changing video tutorial, click here.

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