Herb Pharm, Rehmannia, 4 OzProduct Description Rehmannia extract is from the root of rehmannia glutinosa plants. The whole root is harvested and dried each fall in china. Rehmannia is processed with rice wine after harvest, according to traditional chinese methods, then dried and thoroughly extracted. Product Benefits Herbal Supplement. Optimal Well Being. Ingredients Untitled 1 Supplement Facts Serving Size: 0. 7 ml Amount Per Serving %Daily Value Rehmannia root(rehmannia