How often can I use the kit, and what is a typical treatment schedule?

Most at-home LED whitening kits are designed for a defined course — commonly one session per day for 7 to 14 consecutive days, with each session lasting 10–30 minutes depending on the gel concentration and device output. Check the leaflet that comes with your specific unit for the exact timing and total number of applications. Do not add extra sessions or extend the daily wear time hoping for faster results; overuse increases the risk of temporary tooth sensitivity and gum irritation without improving the final shade. After completing a full course, give your teeth a break — typically at least 2–4 weeks — before considering a touch-up. Maintenance sessions (e.g., once every few weeks) may help preserve brightness if you continue consuming staining beverages. Store the gel syringes in a cool, dry place (refrigeration can extend shelf life but is not mandatory unless stated). Always brush gently before use, apply a thin, even layer of gel to the front surfaces only, and rinse thoroughly afterward.