Crest 3D Whitestrips are the default cheap option, but how do they stack up against the dentist on cost over a few years? This is a cost comparison only, not dental advice. Your dentist is the right person to say what suits you.
The short answer
A Crest Whitestrips kit runs about $20-$60, versus $150-$600 for dentist take-home trays and $300-$1,000 for in-office Zoom. Strips are by far the lowest entry cost. The catch is cadence: results last roughly 3-6 months, so most people repurchase two to four kits a year.
How the gap narrows over time
Buy two $45 kits a year for five years and you are at about $450, still well under a $500-plus single Zoom visit, and under most take-home tray totals once you add gel refills. If you whiten four times a year, the running cost climbs faster and the comparison gets closer. Use the calculator to plug in your own kit price and cycles, or see our ranking of the cheapest ways to whiten teeth.
What strips do not capture
Cost is only part of the picture. Professional methods are stronger and last longer per treatment, which can change the per-year math even if the upfront number is higher; our dentist-cost breakdown walks through that side. Because this is a cost-only tool, it stays out of efficacy and safety. Ask a dentist for that, and see the ADA guidance we reference.
Cost per option at a glance
Ranking the three routes purely by what you pay, lowest entry cost first:
- Crest Whitestrips. ~$20–$60 per kit, bought roughly two to four times a year. Lowest upfront cost and no appointment.
- Dentist take-home trays. ~$150–$600 for custom trays, then cheaper gel refills. A middle option that spreads cost over repeat use.
- In-office (Zoom). ~$300–$1,000 per visit. Highest single cost, fewest sessions.
