They aren't mandatory for a glutathione supplement to function, but their inclusion is a reasonable, biochemistry-backed formulation choice
For mens performance or active-lifestyle formulas, the safer B2B pathway is to build around permitted ingredients, transparent labels, third-party contaminant screening, and compliant structure/function language such as supports energy metabolism or supports exercise recovery. Avoid disease-treatment claims, steroid-like positioning, and any implication that a formula contains or replaces prohibited research chemicals
Thus, we have demonstrated that GSH-targeted therapy selectively kills PC cells in an oxidative stress-dependent manner and that the differences in basal ROS level and antioxidant scavenging capacity induced by stratified expression of VRK2 can well account for the heterogeneous sensitivity to GSH inhibition
This is a research and educational reference
Significant weight to lose (50+ pounds): The greater the total weight loss, the more relevant skin elasticity support becomes