Gwyneth Paltrow wrote about her love of vagina steams on Goop. Credit: Gregg DeGuire/WireImage

The ultimate TMI? Gwyneth Paltrow just introduced one very intimate and surprising step that fans must take in their quests to becoming Goop goddesses. 

The lifestyle guru, 42, is famous for offering up recipes, beauty tips, and covetable yet outrageously expensive products, but this week she took it a step further when she preached the importance of getting so-called V-Steams — a spa treatment that cleanses a customer's lady parts. 

Writing about a high-end Santa Monica retreat called Tikkun Holistic Spa, Paltrow spills, "The real golden ticket here is the Mugworth V-Steam: You sit on what is essentially a mini-throne, and a combination of infrared and mugwort steam cleanses your uterus, et al." 

Sources tell Us Weekly that Paltrow truly practices what she preaches and visited Tikkun Spa just last week for a V-Steam. She followed up the cleansing treatment with a full body scrub, massage, and facial. 

"It is an energetic release — not just a steam douche — that balances female hormone levels," she adds. "If you’re in L.A., you have to do it."

Celebrated on Tikkun Spa's website as "the talk of the town," the V-Steam sets a visitor back $50 for one 30-minute treatment. For those truly wishing to follow Paltrow's gospel, a five-treatment package can be purchased for $200.

The spa's site provides a history of the steam, explaining that it has been utilized in Korea "for hundreds of years" and helps to "maintain internal health" and keeps "skin looking young and healthy. The procedure involves the placement of boiled leaves and flower buds on a "specific area of the body" for "detoxication."