Hydroquinone (Eldoquin Forte): Uses, Side Effects, FAQs & More GoodRx Glutathione as a skinlightening agent and in melasma: a systematic review Sarkar 2025 International Journal of Dermatology Wiley Online Library Best Skin Lightening Ingredient Hydroquinone or Glutathione? Many so called whitening pills contain glutathione, hydroquinone, or even unregulated blends, but did you know the FDA has never approved these for skin lightening? High doses may harm your liver, What is Hydroquinone? And Why is it controversial? , The gold standard for treating these darker patches was a topical skin lightening ingredient called hydroquinone, which works by reducing the