The waist-training debate continues! On February 25, Teen Mom 2 star Kailyn Lowry took to Instagram to reveal that she straps herself into a corset for four to six hours at a time — and she encouraged other new mamas to give the binding technique a try. 

“I recommend it to all Moms that [are] trying to get that pre baby body back or for anyone who wants a smaller waist,” the MTV personality, 23, wrote beneath her bathroom mirror selfie.

The mother of Lincoln, 6, and Javi, 2, isn’t the only famous face to tout the benefits of waist training. Moms Jessica Alba, Kourtney Kardashian, Kim Zolciak, Coco Austin and Snooki all claim that rocking a postpartum corset helped reshape their bodies. But does it actually work?

Dr. Mary Jane Minkin, a clinical professor of Ob-Gyn at Yale School of Medicine, says that once you remove the garment, your body will return to its normal shape. “I have been mystified by the whole waist-training issue,” Dr. Minkin tells Us Weekly. “There is no scientific reason that wearing a tight corset around one’s waist would do anything permanent.” 

The trendy practice also comes with health risks. 

“Waist-training can push the stomach beyond the diaphragm, causing reflux, and it can also interfere with breathing,” Dr. Caroline Apovian, professor of medicine at Boston University School of Medicine, tells Us. But the author of The Age-Defying Diet does recognize there are some benefits.  

“I don’t see a problem with waist training, as long as it isn’t too tight,” says Dr. Apovian. “It may even work as a motivation to change eating, exercise and lifestyle habits. But no one should believe that will cause weight loss on its own.”