and branched-chain amino acids

it provides broad-spectrum control against key internal parasites to help maintain herd health and productivity

yet strong enough to handle powerful breeds

Do not use on puppies under 12 weeks old

This also means storage even simpler

Pro Force 50 Spot On Topical Fly Treatment for Horses Brushes & Mitts and branched-chain amino acidsPro Force 50 Spot On Pro Force 50 Spot On for Horses is a topical fly control treatment for horses 3 months of age or older to kill and repel flies, mosquitoes, gnats and ticks for up to 2 weeks. Pro Force 50 Kills & Repels: horn flies face flies horse flies house flies gnats mosquitoes ticks Important: Do NOT use on cats as it may be fatal.