COSRX vs La Roche-Posay:Which is more popular?
In September 2026, La Roche-Posay had more branded searches than COSRX among SPF brands in New Zealand. La Roche-Posay had about 17,800 branded searches, while COSRX had 9,130. La Roche-Posay made up 20.8% of all SPF brand searches we track, and COSRX accounted for 10.7%. When we asked ChatGPT and Google AI Overviews about SPF brands, La Roche-Posay appeared in all five answers and COSRX in one. La Roche-Posay was mentioned before COSRX in every answer.
Who do people search for more?
La Roche-Posay, about 95% more searches than COSRX
Who does AI mention more?
La Roche-Posay, mentioned in every answer we collected
Who does AI recommend more?
La Roche-Posay, named ahead of COSRX in every answer
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Top SPF brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, La Roche-Posay appeared in all five answers. COSRX was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. La Roche-Posay was listed before COSRX 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.
- La Roche-Posay5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Skinnies2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Bondi Sands2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
COSRX1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
CeraVe0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Beauty of Joseon0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Eucerin0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about SPF brands
5 answers
Asked ChatGPT
“Which SPF brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best SPF brands in New Zealand?”
Asked ChatGPT
“What's the best SPF brand in New Zealand for daily sun protection?”
Searched Google, AI Overview
“best sunscreen”
Searched Google, AI Overview
“spf 50 sunscreen”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 19, 2026.
Is COSRX or La Roche-Posay more popular in search?
This chart shows how often people search Google for COSRX and La Roche-Posay by name. Each line represents a brand's share of searches for all seven SPF brands we track, month by month, from searches in New Zealand.
Share of searches by month for La Roche-Posay, COSRX. The figures are in the table below the chart.
View monthly share of searches table
| Month | Skinnies | La Roche-Posay | CeraVe | COSRX | Beauty of Joseon | Bondi Sands | Eucerin |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 45.7% | 19.2% | 14.2% | 8.4% | 6.6% | 4.7% | 1.3% |
| Nov 2025 | 42.7% | 21% | 13.5% | 7.9% | 8.5% | 5.3% | 1% |
| Dec 2025 | 40% | 20.9% | 16% | 9.2% | 7.9% | 5% | 1.1% |
| Jan 2026 | 39% | 20.6% | 18.3% | 9% | 8.7% | 3.2% | 1.2% |
| Feb 2026 | 43.3% | 18.6% | 17.3% | 9.5% | 7.2% | 3% | 1.2% |
| Mar 2026 | 41.2% | 18.4% | 17.2% | 11% | 8.1% | 2.9% | 1.2% |
| Apr 2026 | 38.9% | 21.2% | 17.7% | 10.5% | 7.7% | 2.7% | 1.2% |
| May 2026 | 37.9% | 19.6% | 18.5% | 11.7% | 8.6% | 2.6% | 1.1% |
| Jun 2026 | 37.6% | 20% | 19% | 10.6% | 8.8% | 2.7% | 1.2% |
| Jul 2026 | 37.3% | 19.9% | 19.8% | 10.2% | 8.7% | 2.7% | 1.4% |
| Aug 2026 | 36.2% | 19.9% | 20.1% | 10.5% | 8.9% | 3.1% | 1.4% |
| Sep 2026 | 38.9% | 20.8% | 15.5% | 10.7% | 9.5% | 3.4% | 1.2% |
How has the COSRX and La Roche-Posay comparison changed over the last 12 months?
3 findings
- La Roche-Posay was ahead of COSRX in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, COSRX’s share of searches among SPF brands in New Zealand moved from 8.4% to 10.7%, and its estimated monthly branded searches moved from 6.1K to 9.1K.
- Across the 12 months ending September 2026, La Roche-Posay’s share of searches among SPF brands in New Zealand moved from 19.2% to 20.8%, and its estimated monthly branded searches moved from 13.9K to 17.8K.
How did search popularity change for New Zealand SPF brands in September 2026?
2 changes
In September 2026, La Roche-Posay overtook CeraVe to rank 2nd among SPF brands in New Zealand, with 20.8% of the searches.
Estimated monthly branded searches for COSRX in New Zealand rose 50.2% over 12 measured months, from 6.1K to 9.1K in September 2026.
How are branded searches counted?
17 search terms
Brandwave collects information about searches that people make online using COSRX’s and La Roche-Posay’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.
COSRX
7 branded search terms
- cosrx
- cosrx cleanser
- cosrx face cleanser
- cosrx serum
- cosrx snail mucin
- cosrx sunscreen
- master patch cosrx
La Roche-Posay
10 branded search terms
- la roche posay
- la roche posay anthelios
- la roche posay cicaplast
- la roche posay cleanser
- la roche posay effaclar
- la roche posay facewash
- la roche posay moisturizer
- la roche posay serum
- la roche posay skincare
- la roche posay toleriane
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