The magazine's Editor-in-Chief Sarah Ivens said the actress is replacing LA nightspots and smoking with reading and praying.
"She really is taking it seriously. She's replacing L.A. and smoking with yoga and reading. She hasn't looked this good in years," the New York Daily News quoted Ivens, as saying.
Ivens also said that Lohan is worried about the influence she has had on sister Ali.
"She's been really worried about the influence she's having on her little sister Ali ," Ivens said.
"That's why this time she's determined to sort herself out, because she doesn't want her Ali to grow up and suffer the same things she's suffered," Ivens added.
According to OK' Lohan spends her days writing in a journal, soaking up "spiritual classes" and working shifts at Smith's, a nearby supermarket, where her earnings go to a local charity'.