Experience next-level whitening with the Super Sparkle Booster Gel from gli gli glow—formulated with 6% hydrogen peroxide, making it one of the strongest teeth whitening gel options available for at-home use. This UK-made, dental-grade gel is designed for fast, visible results in just 5–10 days without causing sensitivity. Whether you're fighting coffee stains or just want to refresh your smile, the booster gel works seamlessly with your LED device to enhance brightness by up to 8 shades. Safe, effective, and enamel-friendly—it's your ultimate solution for achieving a radiant, confident glow at home.