Patented 45% Permethrin (per 9 cc applicator) based formula for horses. Labeled for the control of mosquitoes & ticks. Easy to apply applicator. 1 (9cc) applicator protects for 14 full days. Will not wash off.
We live adjacent to a wilderness area and have wild elk and deer on our property year-around. In warm years the ticks would carry us off without Spot-On. I can putthis on an infested animal and the ticks--ALL of them--are gone within hours.