Einstein Oil is a unique formula whose main ingredient is a natural cold extracted oil from an Indian tree. This oil is 100% natural and is the key ingredient in many herbal skin preparations, soaps, toothpastes and other health products. HOW DOES IT WORK? Einstein Oil works by interfering with the insect's ability to molt. If a growing insect cannot molt, it will not reach sexual maturity - therefore it will be unable to mate and reproduce. This means that within one to three life cycles, all the insects will die of old age and there will be no more eggs left to hatch. Mix 1-2 tsp of oil to one liter of room temperature water and spray thoroughly every two to five days.