A kind of oral microparticles of what are closed in this creation system, system carrys out consumption of calorie by citrus young fruit extract, the citrus young fruit extract ties up in core layer, and include at least Synephrine (synephrine element), promote glucose, fat and heat consumption, and promote metabolic rate, simultaneously, can also fat cell be stimulated to decompose, it is thus possible to the effect of reaching Weight management; In addition, there is protective layer outside the core layer, citrus young fruit extract is allowed to be saved, effectively can effectively be absorbed by human body, so that being performed to the effect of body weight control best.本創作係關於一種口服微粒,係藉由柑橘幼果萃取物來消耗熱量,該柑橘幼果萃取物係在核心層內,並至少包括Synephrine(辛弗林素),促進葡萄糖、脂肪與熱量消耗,並提升代謝率,同時,還可刺激脂肪細胞分解,因而能夠達到體重管理的功效;此外,在該核心層外具有保護層,讓柑橘幼果萃取物得以被保存,能夠有效地被人體有效吸收,使得體重控制的功效發揮到最佳。