First there was UltraShield and now there's UltraShield EX, the new standard in fly control protection from Absorbine. UltraShield EX is the first weatherproof, sweat-resistant formula that can provide 17 days of fly control.  It's the hardest working insecticide-repellent around and it can even be used on dogs.

• The most advanced, ready-to-use fly, mosquito and tick repellent available
• Sweat-resistant, weather proof and contains two sunscreens
• Kills and repels insects for 17 days, including mosquitoes that transmit West Nile Virus
• Made with natural Pyrethrins (from chrysanthemums), Permethrin and Piperonyl Butoxide
• Use on horses, ponies, dogs, stalls and bedding