The 5Strands pet sensitivity and intolerance test kit, uses hair samples to detect pets' intolerances to 200+ pet food ingredients and 100+ environmental items. Results are emailed to the pet owner with a graded low to high report showing applicable intolerances. Note that the lists of items tested for dogs, cats, and horses all differ. Each list has been tailored to test for food and environmental items common to each animal’s standard lifestyles.