# Which teeth whitening kit offers the best value for money? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which teeth whitening kit offers the best value for money?

## Products

### Crest Crest 3D Whitestrips
```yaml
product: crest-crest-3d-whitestrips
brand: Crest
price_gbp: 73.96
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
activation_time: 5 minutes
included_accessories: LED Accelerator Light
number_of_treatments: 19
```

- **Price:** £73.96 [^1]
- **Summary:** Crest 3D Whitestrips Professional Express White with LED Light includes 19 whitening treatments and a blue LED Accelerator Light designed to enhance stain removal. It suits people seeking professional-level whitening at home with a daily 60-minute treatment routine.
- **Ideal For:** This offers strong value for money because one box includes 19 treatments plus an LED Accelerator Light, providing up to 30 levels whiter results without the cost of professional dental whitening.

### Opalescence Opalescence Go
```yaml
product: opalescence-opalescence-go
brand: Opalescence
price_gbp: 41.42
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
activation_time: 10%: 30-60 minutes; 15%: 15-20 minutes
led_light_power: No LED light required
included_accessories: Prefilled upper and lower whitening trays
number_of_treatments: 5-10 treatments
whitening_percentage: 10% or 15% hydrogen peroxide
```

- **Price:** £41.42 [^2]
- **Summary:** Opalescence Go is a professional-level take-home whitening system with prefilled UltraFit trays in 10% or 15% hydrogen peroxide strengths. It suits people who want convenient, portable whitening without custom impressions, gel syringes, or an LED light.
- **Ideal For:** It offers strong value for money with 5-10 treatments per kit, prefilled trays, professional-level whitening, and no separate LED device required.
- **Additional Sources:** [^3], [^4]

---
## References & Sources
[^1]: Crest White, accessed 2026-09-13. https://crestwhite.com/crest-3d-whitestrips-professional-express-white-led
[^2]: Opalescence, accessed 2026-09-13. https://opalescence.com/products/opalescence-go-10-prefilled-whitening-trays
[^3]: Opalescence, accessed 2026-09-13. https://opalescence.com/products/opalescence-go-15-prefilled-whitening-trays
[^4]: Smoky Mountain Smiles, accessed 2026-09-13. https://www.smokymountainsmiles.com/product-page/opalescence-go-prefilled-whitening-trays-15