Tevrapet Naturals are powered by a unique blend of botanical oils (cedarwood, mint & almond oil). Studies have revealed that the constituents of essential oils have a harmful effect on the nervous system of ectoparasites (insects). The essential oil blend disrupts the octopamine (circulating-neuromodulator) that results in a complete breakdown of nervous system in pets resulting in a quick death of these pesky bugs.,Tevrapet Naturals are powered by a unique blend of botanical oils (cedarwood, mint & almond oil).