Hi dr. i bought hydrogen peroxide gel 6% for teeth whitening to put in tray how much should i leave this gel on my teeth to stay safe without damaging it and have a good result thank you?

Talk to your dentist. You may damage more than your teeth with this do it yourself adventure. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV and Covid vaccines. Wish you good health!

USE FOR 15 MINUTES OR READ THE INSTRUCTIONS. SOME WHITENING GELS UP TO 1/2 HOUR.SEE YOUR DENTIST FOR THE BEST PRODUCTS OF GELS. TO STRONG A PERCENT OF PEROXIDE CAN HARM THE ENAMEL OF YOUR TEETH.