Hismile vs Opalescence:Which is more popular in New Zealand?
In October 2026, Hismile had more branded searches than Opalescence among teeth whitening brands in New Zealand. Hismile had about 4,160 branded searches, while Opalescence had 960. Hismile made up 39% of all teeth whitening brand searches we track, and Opalescence accounted for 9%. When we asked ChatGPT and Google AI Overviews about teeth whitening brands, Hismile appeared in four of the five answers and Opalescence in one. Hismile was mentioned before Opalescence in every answer.
Who do people search for more?
Hismile, about 4 searches for every 1 for Opalescence
Who does AI mention more?
Hismile, mentioned in 4 of 5 answers, Opalescence in 1
Who does AI recommend more?
Hismile, named ahead of Opalescence in every answer
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Top teeth whitening brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Hismile was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Opalescence was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. Hismile was listed before Opalescence in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Hismile4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Colgate Optic White3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Opalescence1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Crest 3D White0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
White Glo0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about teeth whitening brands
5 answers
Asked ChatGPT
“Which teeth whitening brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best teeth whitening brands in New Zealand?”
Asked ChatGPT
“What's the best teeth whitening brand in New Zealand for whiter teeth?”
Searched Google, AI Overview
“best teeth whitening”
Searched Google, AI Overview
“whitening strips nz”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is Hismile or Opalescence more popular in search?
This chart shows how often people search Google for Hismile and Opalescence by name. Each line represents a brand's share of searches for all five teeth whitening brands we track, month by month, from searches in New Zealand.
Share of searches by month for Hismile, Opalescence. The figures are in the table below the chart.
View monthly share of searches table
| Month | Hismile | Colgate Optic White | Crest 3D White | Opalescence | White Glo |
|---|---|---|---|---|---|
| Nov 2025 | 70.2% | 8.9% | 11.3% | 6.6% | 3.1% |
| Dec 2025 | 63.3% | 12.1% | 14.2% | 6.5% | 4% |
| Jan 2026 | 46.7% | 16.4% | 23.2% | 8.7% | 5% |
| Feb 2026 | 46.4% | 17.5% | 20.9% | 10.2% | 4.9% |
| Mar 2026 | 53.7% | 16.7% | 16.4% | 9.6% | 3.6% |
| Apr 2026 | 52% | 16.8% | 16.2% | 10.5% | 4.5% |
| May 2026 | 69.1% | 11.6% | 10% | 6.3% | 3.1% |
| Jun 2026 | 60.6% | 14.6% | 12.4% | 8.6% | 3.8% |
| Jul 2026 | 58.8% | 17% | 14.2% | 7.1% | 2.9% |
| Aug 2026 | 49.7% | 30.9% | 10.7% | 5.9% | 2.8% |
| Sep 2026 | 52.7% | 24.5% | 12% | 7.1% | 3.8% |
| Oct 2026 | 39% | 29.8% | 16.9% | 9% | 5.4% |
How has branded search for Hismile and Opalescence changed in New Zealand over the last 12 months?
3 findings
- Hismile was ahead of Opalescence in every measured month of the 12 months ending October 2026.
- Across the 12 months ending October 2026, Hismile’s share of searches among teeth whitening brands in New Zealand moved from 70.2% to 39%, and its estimated monthly branded searches moved from 8.5K to 4.2K.
- Across the 12 months ending October 2026, Opalescence’s share of searches among teeth whitening brands in New Zealand moved from 6.6% to 9%, and its estimated monthly branded searches moved from 800 to 960.
How did search popularity change for New Zealand teeth whitening brands in October 2026?
2 changes
In October 2026, Opalescence gained share of searches among teeth whitening brands in New Zealand, from 7.1% to 9%.
In October 2026, Hismile lost share of searches among teeth whitening brands in New Zealand, from 52.7% to 39%.
How are Hismile’s and Opalescence’s branded searches counted?
28 search terms
Brandwave collects information about searches that people make online using Hismile’s and Opalescence’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Hismile
11 branded search terms
- hi smile
- hi smile mouthwash
- hi smile stripes
- hi smile toothbrush
- hismile
- hismile mouthwash
- hismile strip
- hismile teeth whitening
- hismile toothbrush
- hismile whitening
- hismile whitening kit
Opalescence
17 branded search terms
- bleaching gel opalescence
- dental whitening opalescence
- opalescence
- opalescence bleaching gel
- opalescence dental bleach
- opalescence go
- opalescence teeth bleach
- opalescence teeth bleaching gel
- opalescence teeth whitening
- opalescence teeth whitening gel
- opalescence white
- opalescence whitening
- opalescence whitening gel
- opalescence whitening toothpaste
- opalescence whitening trays
- teeth whitening products opalescence
- teeth whitening with opalescence
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