EDC
Crest 3D Whitestrips
by Crest
11
2 endorsements on r/BuyItForLife first recommended in Jun 2025
Over-the-counter hydrogen peroxide teeth whitening strips sold in multi-treatment boxes.
Added Jul 5, 2026, Updated Jul 7, 2026
Why it's buy-it-for-life
A single box stretches over years of occasional use for some redditors, though a dentist notes the lower peroxide concentration means slower results than professional trays.
What redditors say
Recommended on reddit as recently as June 2025
Tags
teeth-whitening hydrogen-peroxide otc long-lasting
Crest white strips have a much lower concentration of peroxide than the gel tubes or prefilled Opalescence Go trays so they work but will take longer.
Just get some crest white strips. A box lasts me years.
Crest strips and toothpaste definitely help. I swear they even improved my gum health/periodontal disease.