Progesterone
Progesterone is the dominant hormone of the luteal phase. It rises after ovulation to support a possible pregnancy, then falls to trigger your period.
Progesterone is calming and slightly sedating, which is why the luteal phase can feel slower.
Its sharp drop before menstruation is a key driver of PMS symptoms.
Sync your whole cycle, automatically
PhaseBloom builds your meals, workouts, and skincare around your exact cycle phase, day by day.