The 5Strands allergy test for dogs is a test that uses hair samples to check for compatibility or intolerance to food and environmental factors. The test can cover over 300 items, including proteins, grains, fruits, vegetables, additives, preservatives, household cleaners, grasses, pollens, fabrics, metals, minerals, and more. The test results are emailed in about 7-10 days and include an elimination guide that helps pet owners identify and remove the intolerances from their dog's diet and environment. The test does not require blood or skin samples and can be done at home.