Which oral care brands do AI assistants recommend in South Korea? Q4 2026
In South Korea, AI assistants most often recommend Oral-B, Median and Perioe for oral care. Oral-B is named by 5 of 5 assistants.
What the data says
Oral-B (Procter & Gamble) is the oral care brand AI assistants recommend most in South Korea, taking 15.8% of all recommendation points across 5 assistants. Median follows with 9.6% and Perioe is third with 8.8%.
Oral-B's lead over Median is 6.2 points, a clear advantage in how AI shortlists the category.
ChatGPT, Claude, Gemini and Grok put Oral-B first, while DeepSeek favours Median.
The top five brands hold 50% of recommendations out of 38 brands named in total, leaving room for challengers to break into AI shortlists.
| # | Brand | Owner | AI share | ChatGPT | Claude | DeepSeek | Gemini | Grok |
|---|---|---|---|---|---|---|---|---|
| 1 | Oral-B | Procter & Gamble | 15.8% | 93 | 90 | 68 | 117 | 105 |
| 2 | Median | Amorepacific | 9.6% | 45 | 45 | 79 | 59 | 59 |
| 3 | Perioe | Perioe | 8.8% | 55 | 43 | 50 | 50 | 65 |
| 4 | Philips | Philips | 8.3% | 35 | 50 | 55 | 60 | 50 |
| 5 | LG | LG | 7.3% | 47 | 45 | 45 | 50 | 32 |
| 6 | Colgate | Colgate-Palmolive | 6.7% | 58 | 33 | 32 | 40 | 37 |
| 7 | Listerine | Kenvue | 5.5% | 25 | 35 | 35 | 35 | 35 |
| 8 | Waterpik | Church & Dwight | 5.5% | 35 | 35 | 35 | 25 | 35 |
| 9 | Panasonic | Meta / Ray-Ban | 3.7% | 20 | 32 | 20 | 12 | 28 |
| 10 | O:care | O:care | 3.3% | 20 | 24 | 35 | 8 | 12 |
| 11 | Aekyung 2080 | Aekyung | 2.7% | – | 35 | 25 | 20 | – |
| 12 | Sensodyne | Haleon | 2.4% | 20 | 20 | 12 | 12 | 8 |
| 13 | Xiaomi | Xiaomi | 2.4% | 8 | 20 | 12 | 20 | 12 |
| 14 | Garglin | Dong-A Pharmaceutical | 2.3% | 35 | – | 8 | – | 25 |
| 15 | Oclean | Oclean / Xiaomi Ecosystem | 2% | – | – | 20 | 20 | 20 |
| 16 | 2080 | Aekyung | 1.6% | – | 20 | – | 8 | 20 |
| 17 | Reach | Kenvue | 1.5% | 20 | 25 | – | – | – |
| 18 | GUM | Sunstar | 1.2% | – | – | – | 12 | 25 |
| 19 | Lotte | Lotte | 1.2% | 12 | 8 | 8 | 8 | – |
| 20 | Aquapick | Aquapick | 0.8% | – | – | 25 | – | – |
Questions about AI oral care recommendations
- Which oral care brand does ChatGPT recommend most in South Korea?
- ChatGPT recommends Oral-B most often for oral care in South Korea. Across all assistants, Oral-B leads with 15.8% of recommendations.
- Which oral care brand is improving fastest in South Korea?
- Listerine has the strongest momentum among challengers: AI names it first in 4 of 5 answers where it appears, while holding 5.5% share. This is the first Q4 2026 reading; change over time will be shown from the next update.
- How is the ranking calculated?
- We ask each AI assistant the questions shoppers ask in each category and market, record the top five brands it names, and give 35, 25, 20, 12 and 8 points for positions one to five. Share is a brand's points divided by all points awarded.
Oral Care: AI rankings by country
Covers: Dental Floss, Electric Toothbrushes, Manual Toothbrushes, Mouthwash, Toothpaste, Water Flossers.
Method: each AI assistant is asked the shopper questions for every segment in the category and market; the top five brands named score 35, 25, 20, 12 and 8 points. Share is a brand's points divided by all points awarded. Rankings reflect AI answers, not sales.
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