Three powerful ingredients. Arnica. MSM. Aloe Vera. DOCTOR HOY’S™ Natural Arnica Boost attacks pain and inflammation and promotes healing. Arnica Boost was designed for impact injuries, joint pain, arthritis, neuropathy, muscle soreness, rapid bruise relief and to calm irritated skin and nerves. Arnica Boost is unscented and has no sensation making it perfect for all ages and all body parts, even sensitive areas. Expect hours of relief! Convenient pump included. Use alone or with DOCTOR HOY’S Natural Pain Relief Gel.