Has anyone heard of primrose oil? If so, does it help soften the cervix prior to delivery?

Lorraine • First time mom. Baby girl due in July 🤰🏽👼🏼

I’m expecting for the first time and I was talking to my cousin who had said she took primrose oil orally and then a few weeks before her due date, she inserted two vaginally. She of course got the approval from her midwife. She said it played a role in her quick labor process and it helped her not tear. I am just curious if other women have heard of primrose oil and have used it.