Use with caution in pregnant or breastfeeding women, as safety data in these populations are limited
The brightening effect builds gradually, offering a natural, radiant glow rather than an immediate or artificial lightening
Accessed January 26, 2024.
GSH effectively scavenges free radicals and other ROS and RNS (e.g., hydroxyl radical, lipid peroxyl radical, superoxide anion, and hydrogen peroxide) directly and indirectly through enzymatic reactions
The most detailed published percentages still come from the 48-week Phase 2 trial, while the TRIUMPH Phase 3 program is the source researchers are watching for larger-sample confirmation of common adverse events, discontinuation rates, and rare safety signals
Some of the research, including this 2025 review, indicates that it may reduce headache frequency, severity, and intensity, but again, more research is needed to confirm the appropriate dosage