I know - that tag line IS stretching it a bit, but after all, Pycnogenol comes from pine bark!

I have recommended Pycnogenol for many years for menstrual discomfort, and it has been generally extremely effective.  Now comes a study showing it can alleviate the discomfort and pain associated with endometriosis, a condition where the onset of menses produces extra tissue, which attaches outside the uterus causing inflammation and pain .  These adhesions may turn up in the abdomen and on the ovaries where it  causes great pain, and interferes with reproductive processes. 

Endometriosis significantly reduced by Pine Bark

The Vitamin Lady's Pycnogenol