Fructooligosaccharides
FOS
Good
Safe Pores
0/5
Irritancy
0/5
FA Safe
✅ Yes
Pregnancy
✅ Safe
Vegan
✅ Yes
Science & Benefits
Fructooligosaccharides (FOS) are complex plant sugars that serve as high-efficiency water-binding agents. They are highly hygroscopic, meaning they pull moisture from the environment into the stratum corneum. Beyond hydration, they function as prebiotics that reinforce the skin's natural defense barrier. They are 100% non-comedogenic. For acne patients, FOS provides a 'dual-layer' benefit: deep-seated hydration and a stabilized skin environment that makes it more difficult for inflammatory triggers to cause a flare-up.