How Does Glutathione Work for Hyperpigmentation? At PMU & Aesthetics By Nisha, our Glutathione injections are part of a powerful anti ageing blend designed to regulate melanin productionthe key cause of hyperpigmentation. By Science Behind Glutone A Skin Glow Tablet Fades age spots and sun damage, LGlutathione reduces melanin for clearer skin tone. The Glutathione Derivative, GSH Monoethyl Ester, May Effectively Whiten Skin but GSH Does Not