Skin Concerns and Treatments · Canada
ChatGPT, Perplexity and Google AI Overview answered "What is the best vitamin C serum for sensitive skin?" 3 times on 6 October 2026, and named CeraVe in 1 of those answers. After CeraVe come La Roche-Posay (1) and Naturium (1). They cite allure.com more than any other source, 9 times, ahead of youtube.com with 7.
| Brand | Answers | |||
|---|---|---|---|---|
| 2nd | – | – | 1/3 | |
| 3rd | – | – | 1/3 | |
| – | – | 1st | 1/3 | |
| 1st | – | – | 1/3 |
Each engine's place in its latest answer: ChatGPT 6 October 2026 · Perplexity 6 October 2026 · Google AI Overview 6 October 2026
Not named in these 3 answers
Then one work email opens it. No card, no call.