The Secret Behind Kajols Timeless Glow: Glutathione , Have you ever wondered how Kajol went from looking gorgeous to absolutely radiant? Meet Glutathione, your bodys superhero!, Painless The Internet Is Obsessed With Kajol's Transformation But What's the Secret? Google it, and the first thing you'll see is IV Glutathione. Some call it a magical fairness treatment, but is that What do you think Kajol must have done to lighten her skin tone? From a Dermatologist's perspective, she could have undergone 'GLUTATHIONE' Treatment, IV along with some skin brightening and lightening peels, Kajol In an old interview, Kajol denied having any skin whitening surgery and said that she had just avoided the sun. She also stated that she had been working in the sun