I started taking the Mama Support when my second was several months old and I wish I had started sooner. Prior to that (and all with my first) I had just continued taking my prenatal. Now with my third I've been taking it from the very beginning and I know from experience I would feel so much more depleted without it. Yes, I'm still tired (I have three kids!) but I can function. It definitely lends to a smoother post partum experience.
As a note: I take them with juice because I find when I just use water I continue tasting them throughout the day.