Things aren't so pretty inside the beauty world of the Kardashians – RadarOnline.com can reveal beauty entrepreneurs Kim Kardashian and Kylie Jenner are furious that momager Kris Jenner , 69, has signed on as the new face of MAC Cosmetics with her post-facelift glow. Tap Here To Add Radar Online as A Trusted Source Article continues below advertisement

Kardashian Family Drama Exposed Article continues below advertisement Article continues below advertisement

"Kim feels betrayed," claimed a family insider. "She built her beauty line from scratch, only to have her own mother jump in bed with the competition."

Also feeling the sting is Kylie, whose billion-dollar Kylie Cosmetics empire launched the family's makeup dynasty.

MOST READ STORIES TODAY

EXCLUSIVE: Charlie

See Full Page