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 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 10 years ago, Kajol had noticeably dull and tanned skin And today, her skin looks much brighter and clearer. She says it's because she used to shoot under the sun without sunscreen, 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,