Birchbox is a subscription service that delivers personalized beauty and grooming products to customers each month. Founded in 2010, it offers a curated selection of samples from various brands, allowing users to discover new products without committing to full-sized items. Subscribers fill out a profile to receive boxes tailored to their preferences, which may include skincare, makeup, and haircare products. Birchbox aims to enhance the shopping experience by providing a convenient way to explore and try out different beauty items before purchasing them.