Is Synthetic glycerine Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Synthetic glycerine? Is Synthetic glycerine safe for nursing mother and child? Does Synthetic glycerine extracts into breast milk? Does Synthetic glycerine has any long term or short term side effects on infants? Can Synthetic glycerine influence milk supply or can Synthetic glycerine decrease milk supply in lactating mothers?

Synthetic glycerine or glycerol is a normal component of human tissues. Involved in lipid and galactose synthesis which is metabolized to glucose or glycogen.It is found naturally in breast milk, with a highest concentration in colostrum. When it is used rectally as a laxative, has little or no absorption. It has been used in preterm infants. The oral or intravenous administration is rarely used (extracellular edema, intracranial hypertension, diagnosis of Meniere's disease). A short half-life span makes it compatible with breastfeeding in these rare cases.It also compatible with intraocular administration. It has been used in creams and gels to treat pain and cracks of nipple during lactation without clear results on effectiveness. In those cases it should be cleaned thoroughly with water before the next breast suckling to prevent it could be swallowed by the infant, since a high intestinal absorption may induce an increased plasma osmolality that can result in dehydration of the infant.