Teeth Whitening: Professional vs. Over-the-Counter — What Actually Works?

Why Store-Bought Whitening Disappoints

Over-the-counter whitening strips and toothpastes contain 3–10% hydrogen peroxide. Professional treatments use 25–40%. That's the difference between "slightly brighter after 2 weeks" and "noticeably whiter in one hour."

Common OTC options:

• Whitening strips ($30–$50) — mild results after 7–14 days
• Whitening toothpaste ($5–$15) — removes surface stains only
• LED kits ($50–$100) — minimal concentration, inconsistent results

Professional Whitening Options

In-Office Whitening

• Done in a single 60–90 minute appointment
• Results: 3–8 shades whiter immediately
• Custom-fitted trays protect your gums
• Cost: $400–$800

Custom Take-Home Trays

• Professional-grade gel with custom-molded trays
• Wear 30–60 minutes daily for 1–2 weeks
• Results: 2–6 shades whiter
• Cost: $250–$400

Who Shouldn't Whiten?

• Pregnant or nursing women
• Children under 16
• People with untreated cavities or gum disease (treat those first)
• Patients with many crowns or veneers (these don't whiten)

How Long Do Results Last?

With good oral hygiene and occasional touch-ups, professional whitening lasts 1–3 years. Avoid heavy coffee, red wine, and tobacco for the longest results.

Ready for a brighter smile? Schedule a whitening consultation at our Tumwater, WA office. We'll recommend the best option for your teeth and budget.