VD is vitamin D,which is an essential element for calcium formation and synthesis.In the calcium supplement,we must cooperate with vitamin D,and often bask in the sun,so that through ultraviolet radiation,we can form a certain amount of vitamin D in the body, which is conducive to the absorption of calcium. DSPE (MPEG DSPE) is a kind of phospholipid peg derivative with terminal DSPE group at PEG end.DSPE is a kind of C18 saturated phospholipid with high hydrophobicity.

msds----DSPE-PEG350-vitamin D