Cinderella 99, also known as "C99," "Cindy," and "Cindy 99," is a sativa-dominant hybrid marijuana strain. Cinderella 99 is best known for her potent cerebral high, sweet fruity flavors, and epic yields. Cindy’s effects are usually described as dreamy, euphoric, and uplifting. Medical marijuana patients use the effects of Cinderella 99 to relieve symptoms associated with fatigue and stress.