The Farmstay products feature various ingredients, such as collagen, hyaluronic acid, niacinamide, tea tree leaf extract, snail filtrate, horse oil, bird's nest, honey, and aloe. These ingredients offer different skincare benefits, including hydration, anti-aging, and soothing properties. The specific details, positive and negative aspects, and other materials used in Farmstay products may vary depending on the specific product. For more detailed information on a particular product, it is recommended to refer to the product's packaging or the official website.