Teratology is the study of teratogens*.  Belli is the only skin care brand IN THE WORLD that utilizes a teratology screening process to screen for teratogens. This ensures that no ingredients in our formulations have ever been linked to birth defects. Many commonly used skin-care ingrediets are teratogens-even organic ingredients can be teratogens!

*Te.rat.o.gen [tuh-rat-uh-juhn]: any substance capable of interfering with the fetus, causing birth defects or fetal abnormalities.