A popular leaf shine, Einstein Oil contains the finest quality, first extraction, cold-pressed neem oil. It is also enhanced with several other potent herbal ingredients to keep leaves clean and plants healthy. All ingredients are 100% non-toxic. Mix 1/2 - 2 tsp. per quart of water and apply as a foliar spray. WARNING: This product will harm beneficial insects. Neem oil has been shown to interfere with an insect's ability to molt. If a growing insect is not able to molt, it will not reach sexual maturity and will therefore be unable to mate and reproduce. This means that within a few life cycles, all insects (including beneficial insects) will die of old age and there will be no more eggs left to hatch.