Follicle-stimulating hormone (FSH)
FSH is a hormone from the pituitary gland that stimulates ovarian follicles to grow in the follicular phase.
FSH rises early in the cycle to mature a follicle, which in turn produces estrogen.
It works alongside LH, which triggers the actual release of the egg at ovulation.
Sync your whole cycle, automatically
PhaseBloom builds your meals, workouts, and skincare around your exact cycle phase, day by day.