JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding structured data on web pages that helps search engines understand the content. In e-commerce, JSON-LD is used to mark up product information such as price, availability, reviews, and brand, enabling rich snippets in search results that can improve click-through rates and organic visibility.

For beauty e-commerce sites, JSON-LD markup is particularly valuable for product pages where structured data can highlight ingredients, customer ratings, price, and availability directly in Google search results. Implementing JSON-LD correctly can lead to higher click-through rates by displaying eye-catching rich snippets that set a brand apart from competitors in crowded beauty search results.