The preservatives used are Citric Acid to reduce the PH level, Potassium Sorbate to stop mould and Sodium Benzoate as an使用的防腐剂是柠檬酸，目的是为了降低PH值和山梨酸钾，以便防止霉变。另一种是苯甲酸钠，它是一种杀菌剂。
Microcalorimetric Investigation on Physiological Activity of Red Blood Cells Affected by Excipient of Polysorbate 80微量量热法研究増溶性辅料吐温80对红细胞生理活性的影响