Brandwave

How popular isNSI?

In September 2026, people searched for NSI by name about 10 times in New Zealand, about the same as the previous year. These searches made up 0.1% of all New Zealand nail polish brand searches, placing NSI eighth out of eight brands. When we asked both ChatGPT and Google AI Overviews about nail polish brands, NSI did not appear in any of the answers.

Search and AI answers in September 2026

NSI is the eighth most searched of 8 competitors and not listed in any AI answer.

  1. GelishShare of searches 43%Mentioned in 0 of 4 AI answersPlace in AI recommendations –
  2. OPIShare of searches 21%Mentioned in 4 of 4 AI answersPlace in AI recommendations 1st
  3. EssieShare of searches 16%Mentioned in 3 of 4 AI answersPlace in AI recommendations 3rd
  4. EssenceShare of searches 13%Mentioned in 2 of 4 AI answersPlace in AI recommendations 4th
  5. NSIShare of searches 0.1%Mentioned in 0 of 4 AI answersPlace in AI recommendations –

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Top nail polish brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and one Google AI Overview, NSI did not appear in any of the four answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. OPI1st
  2. Sally Hansen2nd
  3. Essie3rd
  4. Essence4th
  5. Gelish–
  6. Kester Black–
  7. Hanami–
  8. NSI–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • OPI4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Sally Hansen4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Essie3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • Essence2 of 4Named in 1 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Gelish0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • Kester Black0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • Hanami0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • NSI0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers

See every answer about nail polish brands

4 answers

  • Asked ChatGPT

    “Which nail polish brand should I buy in New Zealand?”

    1. 1OPI
    2. 2Sally Hansen
    3. 3Essie
    4. 4Essence

  • Asked ChatGPT

    “What are the best nail polish brands in New Zealand?”

    1. 1OPI
    2. 2Essie
    3. 3Sally Hansen

  • Asked ChatGPT

    “What's the best nail polish brand in New Zealand for everyday wear?”

    1. 1Essie
    2. 2Sally Hansen
    3. 3OPI

  • Searched Google, AI Overview

    “best nail polish nz”

    1. 1OPI
    2. 2Sally Hansen
    3. 3Essence

  • Searched Google, AI Overview

    “gel nail polish nz”

    Google showed no AI Overview for this search.

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.

Which nail polish brands compete with NSI?

NSI against nail polish brands in New Zealand, by month

Share of searches by month for Gelish, OPI, Essie, Essence, Sally Hansen, Kester Black, NSI. The figures are in the table below the chart.

View monthly share of searches table
MonthGelishOPIEssieEssenceSally HansenKester BlackHanamiNSI
Oct 202545.2%22.2%12.8%9.8%3.9%4.9%1.1%0.1%
Nov 202542.6%21.6%14.9%8.9%4.2%6.6%1.2%0.09%
Dec 202546.8%20.3%12.7%5.3%3.3%10.7%0.73%0.07%
Jan 202646.6%21%14%6.3%3.9%7.1%1%0.08%
Feb 202646.4%25.1%13.2%7.1%3.9%3.4%0.72%0.1%
Mar 202643.1%25.2%13.5%9%3.6%4.9%0.69%0.1%
Apr 202641.8%27.1%16.3%8.8%3.8%1.7%0.39%0.1%
May 202637.7%29.7%16.6%9.1%4.2%2%0.65%0.09%
Jun 202638.9%30%14.6%10.1%3.9%1.7%0.66%0.09%
Jul 202639%26.5%17.3%11.7%3.1%1.6%0.63%0.09%
Aug 202640.4%22.8%17.9%12.5%4%1.7%0.64%0.09%
Sep 202643%21%16%13%4.1%2.1%0.67%0.1%

  1. 1.Gelish

    43%

    Held 1st. 4.5K estimated branded searches, +2.5% vs prior month. Share +2.6 points.

  2. 2.OPI

    21%

    Held 2nd. 2.2K estimated branded searches, -11.3% vs prior month. Share -1.8 points.

  3. 3.Essie

    16%

    Held 3rd. 1.7K estimated branded searches, -13.8% vs prior month. Share -1.9 points.

  4. 4.Essence

    13%

    Held 4th. 1.4K estimated branded searches, 0% vs prior month. Share +0.5 points.

  5. 5.Sally Hansen

    4.1%

    Held 5th. 430 estimated branded searches, 0% vs prior month. Share +0.2 points.

  6. 6.Kester Black

    2.1%

    Held 6th. 220 estimated branded searches, +22.2% vs prior month. Share +0.4 points.

  7. 7.Hanami

    0.67%

    Held 7th. 70 estimated branded searches, 0% vs prior month. Share 0 points.

  8. 8.NSI

    0.1%

    Held 8th. 10 estimated branded searches, 0% vs prior month. Share 0 points.

Compare popularity between NSI and its closest rivals

How has branded search demand for NSI changed in New Zealand over the last 12 months?

2 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for NSI in New Zealand held steady at 10.
  • Across the 12 months ending September 2026, NSI’s share of searches among nail polish brands in New Zealand held steady at 0.1%.

How did search popularity change for New Zealand nail polish brands in September 2026?

6 changes

  1. In September 2026, Gelish gained share of searches among nail polish brands in New Zealand, from 40.4% to 43%.

  2. In September 2026, Essie lost share of searches among nail polish brands in New Zealand, from 17.9% to 16%.

  3. In September 2026, OPI lost share of searches among nail polish brands in New Zealand, from 22.8% to 21%.

  4. Essence’s share of searches among nail polish brands in New Zealand has gained ground for 3 months in a row, from 10.1% to 13% in September 2026.

  5. Estimated monthly branded searches for Sally Hansen in New Zealand rose 10.3% over 12 measured months, from 390 to 430 in September 2026.

  6. Estimated monthly branded searches for Kester Black in New Zealand fell 55.1% over 12 measured months, from 490 to 220 in September 2026.

How are NSI’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using NSI’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • nsi gel polish

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How the Brand Demand Index is measured

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