^{BEFORE USING THE GUTTERS}

1. _{Pre-care hygiene} Brush your teeth thoroughly and use dental floss and/or interdental brushes. The gel works more effectively on clean teeth.

2. _{Gel application}
- Place a LITTLE drop of gel in each position corresponding to the teeth to be lightened.
- Insert the tray and position it correctly. Remove excess gel with a cotton bud.

3. _{Wearing time}
- Day 1: wear for 1 hour.
- Day 2: wear for 2 hours.
- Day 3: wear for 3 hours.
- From day 4 onwards: ideally wear all night if more convenient, but the product works for a maximum of 4 hours.

  !! _Note Half a syringe allows 2 applications (one per gutter)!

^{AFTER REMOVING THE EAVESTROUGHS}

1. _{Hygiene after use} Remove the mouthpiece and brush your teeth. Don't worry if white spots appear, they'll disappear as the treatment progresses.

2. _{Gutter care} Maintenance : Rinse the gutter in cold water, dry it and store it in its ventilated box.

^{TIPS FOR OPTIMIZING TREATMENT}

- _{Avoid coloring foods and beverages} During treatment, limit consumption of tea, coffee, nicotine, red wine, red fruit, curry, soy sauce and colored drinks. If you can't avoid certain foods, eat them at least 1 hour after removing the tray, or use a straw for drinks.

- _{Tooth sensitivity} In case of sensitivity, take an overnight break. Use a toothpaste for sensitive teeth (such as Sensodyne or Elmex Sensitive) during treatment.

- _{Sonitor the shade} If the color of your teeth seems too white, stop treatment and consult your practitioner.

- _{Final reinforcement} At the end of treatment, apply calcium phosphate ("Tooth Mousse" from GC) to the gutters for at least 1 hour a day, for 7 days.

- _{Dental follow-up} To maintain your results, be sure to consult your dentist at least twice a year.

Please follow these instructions carefully for safe and efficient processing.