Despite these differences in tryptophan levels, both conditions are associated with reduced levels of kynurenine, a metabolite of tryptophan (Schwarz et al., 2002
It not only scavenges free radicals that can trigger excess melanin production, but it also influences the melanin-making process itself (more on that in the next section)
481 Panigrahy et al
How L-Glutathione Works L-Glutathione (GSH) is often described as the bodys master antioxidant because it sits at the center of multiple redox and detoxification systems that keep cells stable under oxidative stress
Clinical research, such as a study evaluating heavy metal excretion, has demonstrated that NAC can actively pull toxic metals like lead, cadmium, and gold out of the blood and tissues, accelerating their clearance through the urine
No clinical study has reported significant adverse effects and irritation reactions are very rare from this ingredient (even at 100% concentration)