There are several ways to collect data on your audience's skin type:
Surveys and Quizzes: Create engaging surveys and quizzes that help customers identify their skin type. Offer incentives like discounts or free samples to encourage participation. Sign-Up Forms: Include questions about skin type in your email sign-up forms. Ensure these questions are optional to avoid deterring potential subscribers. Purchase History: Analyze your customers' purchase history to infer their skin type based on the products they buy.