Kangana Ranaut Questions Lack Of 'Dark Dusky' Actresses In Bollywood After Kajol: Too Much Glutathione Injections Republic World Kajol Skin Lightening Secret Natural Way. Natural Glutathione Drink : 1. Boil 1 2 litres of water. 2. Grate 1 tablespoon of raw haldi Helps in skintone lightening and fades dark spots 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 Bollywood Actress Skin Whitening Treatment I Whitening Injection I Whitening Treatment for Skin 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,