Vernix caseosa is the whitish paste-like stuff that covers the fetus. It is made up of secretions from the sebaceous glands and degenerated epidermal cells and hair.
Sebaceous glands secrete sebum: a mixture of fat and fragments of dead cells.
They secrete a waxy oil substance called sebum into hair follicle.
Exocrine Glands
That would depend on which glands you are talking about in the human or animal body.