Kourtney Kardashian has been open about her boob implants when she was in college, but she regrets it.
Kendall Jenner is considered to be 'the most natural' amongst Kar-Jern clan. Though she is a model, she is speculated to have done rhinoplasty and lip fillers.
Kylie Jenner, the youngest sister is said to have multiple surgeries. Though she credits it to good make up and hair-do. It is believed that she had lip injections and reversal treatments. Along with these, she also had face sculpting, botox fillers, jawline fillers, and Brazilian Butt Lift (BBL)