UltraShield® Gold offers Absorbine’s most advanced fly protection with a formula that works differently than traditional fly sprays. Formulated with innovative Absorbine FlyShield®, UltraShield® Gold delivers exceptional repellency and protection from biting insects by disrupting their ability to locate and land on your horse. You can count on UltraShield® Gold to protect your horse from over 100 different insects, even when the bugs are at their worst. 32 fl oz Spray Bottle.