那用在防晒产品中有什么特殊作用么？

They're prebiotics.

Fructo-oligosaccharides are made up of plant sugars linked in chains. They are taken from asparagus, Jerusalem artichokes, and soybeans, or produced in the laboratory. People use these sugars to make medicine. Fructo-oligosaccharides are used for constipation, traveler's diarrhea, and high cholesterol levels.Sep 17, 2019 (conclusion its just for balancing in Product)