Sharpie markers are generally considered to be non-toxic, making them safe for use by both children and adults, provided they are used as intended. The materials used in Sharpie markers comply with safety standards set by organizations such as the American Society for Testing and Materials (ASTM) and the U.S. Consumer Product Safety Commission. This means that the inks are formulated to be free from harmful substances, allowing for peace of mind when using them for a variety of projects, including art and crafts. However, it is always wise to avoid ingesting the ink or using the markers in a way that is not recommended by the manufacturer. For specific details on safety ratings and usage recommendations, it may be beneficial to visit the current Sharpie webpage, where such information is often made available.