The effect of androgen on the composition of lipid material of the
preen gland of pigeons.
Bio-Oil is formulated with a laboratory recreation of
preen gland oil called PurCellin Oil.
Called Bio-Oil, the product uses a synthetic version of the highly absorbable oil that ducks secrete through their
preen gland to deliver such skin-healing ingredients as vitamins A and E, lavender and rosemary oils, and chamomile extract.
Bio-Oil was developed in South Africa and relies on PurCellin Oil, a recreation of the
preen gland oil of ducks.
She notes that the "heart" of Bio-Oil is a proprietary formula that features PurCellin Oil, a synthetic version of the oil found in the
preen glands of ducks.
The tiny feathers near a duck's
preen glands are much sought after for cul de canard dry flies.