Profile: Nantong Feiyu Fine Chemical Co., Ltd. specializes in offering citrate series, malate series, gluconate series, lactate series and carbonate series. Calcium citrate tetrahydrate is a fine, white powder or granular with characteristic odor. It can be used as a dietary supplement and as a nutrient. It also helps to maintain a regular heartbeat and transmission of nerve impulses. Ferrous lactate can be used as a dietary supplement and as a nutrient. Iron has a vital function in combining with protein and copper to make hemoglobin. It also prevents fatigue and promotes good skin tone.