Hair Testing: How It Works, How It’s Used, and What It Means For You
by Natalie Voss | Aug 11, 2025, 11:36 AM EST
Earlier this summer, US Equestrian added a rule allowing the Federation to begin collecting hair samples as part of its drug testing program. While blood and urine sampling have been part of USEF sanctioned horse shows for many years, hair testing is new and competitors have a lot of questions about it. ©Leslie Potter/US Equestrian First, it’s important to understand how testing for drugs in hair differs from testing blood or urine. When a horse is given a substance (orally or via...











