Took it orally from 37 weeks. And used it internally from 38 weeks. I went 9 days overdue but my labour was quick and no tearing. Massive contrast from my first delivery which was 70+ hours and horrific.
Could completely be anecdotal but I would definitely use it again if I had another baby.
I think I took 1000Mg initially. And then increased to 2000mg per day at 39 weeks. And then inserted 2-3 capsules near my cervix at night. Put a pad or liner on though! They melt and it can get slightly messy the next morning when you get up.