What It Is
Crest 3D White Age Renew White Strips are the latest addition to Crest’s popular whitening range, designed to reverse years of stains and restore a brighter, youthful smile. The product claims to remove up to 30 years of tough set-in stains in just two weeks and deliver up to 25 levels whiter teeth.
Each kit includes upper and lower strips for a 21-day treatment cycle, with each application lasting around 60 minutes. The product features Crest’s Advanced Seal technology to ensure the strips stay in place throughout the treatment.
How It Works
The active ingredient is hydrogen peroxide, a proven whitening agent that penetrates the enamel to break down deep-set stains.
The flexible plastic strips are coated with a peroxide-based gel that adheres to the surface of your teeth.
As the hydrogen peroxide breaks down, it releases oxygen molecules that lift away discoloration and brighten the enamel.
Crest’s Age Renew formula focuses on achieving professional-level results at home, using the same core whitening technology found in many dental-office treatments.
User Experience and Results
Many users report noticeable whitening after just a few uses, with visible results by the end of the second week. The strips stay in place better than older Crest versions thanks to the improved adhesive design.
The treatment process is convenient — it can be done while relaxing, reading, or watching TV — and doesn’t require a professional visit.
Some users experience temporary tooth sensitivity or mild gum irritation, which typically subsides after completing the course or reducing application time.
Pros and Cons
Pros
- Convenient at-home whitening without a dentist visit
- Noticeable results for many users within two weeks
- Strips adhere securely without slipping
- Backed by Crest’s strong brand reputation
- Safe when used as directed
Cons
- Some users experience sensitivity
- Results vary depending on individual enamel and stain depth
- Only whitens natural tooth enamel (not crowns or veneers)
- Daily commitment of around one hour for 21 days
- Whitening results require occasional maintenance
Who It’s Best For
Crest Age Renew White Strips are ideal for adults looking to remove everyday stains caused by coffee, tea, wine, or smoking. They’re best suited for those with natural teeth and mild to moderate discoloration.
They may not be ideal for those with sensitive teeth, extensive dental work on front teeth, or those seeking instant whitening results before an event.
How to Use
- Brush and dry your teeth before applying.
- Align the strip with your gumline and press firmly for good adhesion.
- Leave on for 60 minutes once per day.
- Remove, discard, and rinse if desired.
- Avoid staining foods and drinks (coffee, wine, tomato sauce) for 24–48 hours after each treatment.
- Maintain results with regular brushing and occasional touch-up treatments.
Expert Tips
- Drying your teeth before application improves adhesion and effectiveness.
- If you experience sensitivity, use the strips every other day instead of daily.
- Combine with a gentle, enamel-safe whitening toothpaste to maintain brightness.
- Drink dark beverages through a straw to minimize new stains.
Crest 3D White Age Renew White Strips are one of the most effective at-home whitening treatments currently available. They offer real, visible improvement for most users, especially when used consistently.
While results vary and sensitivity can occur, the convenience, safety, and strong whitening power make this a standout choice in the at-home whitening category.
For users seeking dentist-level brightness at a fraction of the cost, this is one of the most reliable whitening kits on the market.