Turkesterone is an extract from a natural plant called Leuzea or Maral Root that looks similar to the more commonly known thistle plant. It is harvested in many countries throughout the world including Siberia, Asia, Bulgaria and Kazakhstan. The plant is considered an adaptogen, which is an herb of the plant studied to have some positive effects on the human mind, including the alleviation of anxiety and fatigue. Allulose bulk is an isomer of fructose, a monosaccharide that exists in nature but in very small amounts. Its sweetness is similar to that of sucrose, but the calories are much lower than that of sucrose. Compared with D-glucose and D-fructose, allulose also has a stronger ability to scavenge reactive oxygen species. Due to the rarity of allulose sweetener in nature, it is not suitable for chemical synthesis and industrial production, and chemical synthesis will produce many other products, which are costly and polluting. The general preparation method is biosynthesis of glucose, and the resulting product is relatively simple and belongs to natural products, which also meets the needs of consumers. Allulose was approved by the United States as a GRAS (American Additive Safety Index) substance in 2011.