Ben's 100 is the ultimate in long-lasting protection against black flies, ticks, chiggers, mosquitoes, deer flies, stable flies and other biting insects. Ben's 100 is a conveniently sized 1.25 oz. Pump Spray bottle. The Ben's Pump Spray bottle dispenses 100% pure Ben's with every squeeze and provides great control over the amount of the product that is released with each application. Water-based repellents sold under the Ben's name contain DEET, the most effective tick and insect repelling ingredient. Ben's 100 contains 95 percent DEET, the highest concentration -- and therefore one of the longest lasting DEET formulas available from any manufacturer. It is recommended for use in areas of heavy insect infestation. Not recommended for use on children under the age of 10. Active Ingredients: N,N-diethyl-m-tolumide (DEET) (95%) Inert Ingredients: Other Isomers (5%)