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, 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 The truth about Glutathione! Ever wondered how Kajol transformed her skin? Contrary to popular belief, it's not just about glutathione injections. Here are some key facts you should know before Kajol's Transformation: From 90s Icon to Bollywood Queen