The Pritty Derma Roller .5mm is a microneedling device designed for at-home skincare treatments. With its .5mm needle length, it helps improve product absorption and stimulate collagen production. The ergonomic black handle and roller head contain fine needles for comfortable use. As this is a personal hygiene/skincare product, proper sanitization and careful use is essential. The .5mm needle length is suitable for weekly use on the same skin area. The device should be thoroughly disinfected before and after each use. It's recommended to use in conjunction with serums and moisturizers for optimal results. Not recommended for use on active acne, infections, or damaged skin.