Abstract: Nanoemulsion compositions, and lipid nanoparticle compositions, comprising natural bioactive agents with natural surfactants, such as saponins from the plant Quillaja saponaria and/or phospholipids derived from lecithin. The nanoemulsions are able to increase the bioavailability of the bioactive materials from plant and other sources (e.g. CBD, nutraceuticals, and vitamins). In an embodiment, the composition further comprises Terpenes or Terpenoids, Piperine, and Chitosan. The nanoemulsions are water-soluble and possess a droplet size (e.g. about 43 to 50 nm), which is better or comparable to those made with synthetic surfactants. Furthermore, the nanoemulsions increase the absorption and bioavailability of the bioactive component while decreasing the pre-systemic elimination and first-pass effect of the liver. Methods of making the nanoemulsions comprise sonification: at an energy level of 1000 Ws/g; or without pressure at 2000-2500 Ws/g while recirculating; or applying high pressure (1.5-2.