Is this FDA approved? Absolutely! Nakka is FDA approved. It has undergone rigorous testing and evaluation to meet the safety and quality standards set by the Food and Drug Administration. This Glutathione Injection Cost, Benefits, Side Effects OPITAC Japan Torula Yeast Glutathione FDA GRAS Approved Chambio Co.,Ltd. FDA Warning: Injectable Lightening Agents Injectable glutathione and vitamin C for skin whitening are NOT FDA approved and come with serious risks: liver and kidney damage, infections, and long term health concerns.