Hui Ren Liuwei Dihuang Pills (Concentrated Pills) is a classic over-the-counter Chinese patent medicine for nourishing Yin and tonifying the kidney. It strictly follows the traditional Liuwei Dihuang Decoction formula and carefully selects six medicinal materials: cooked Rehmannia, cornus officinalis, peony bark, yam, Poria cocos, and Alisma orientale. The product is made with modern concentrated pill technology, making the active ingredients more easily absorbed and convenient to take and carry. This medicine is mainly used to improve typical symptoms such as dizziness, tinnitus, soreness and weakness in the waist and knees, bone fever, night sweats and spermatorrhea caused by deficiency of kidney Yin. It is suitable for sub-healthy people who need to regulate kidney Yin on a daily basis.