Highlighters are designed to be non-toxic and safe for use on paper and other surfaces.
However, it's worth noting a few potential considerations:
1. Skin Irritation: While rare, some individuals may experience mild skin irritation or allergic reactions to certain highlighter ink components. If you have sensitive skin or a known allergy to certain chemicals, it's best to avoid writing on yourself with a highlighter.
2. Staining: Highlighter ink can stain clothing and other fabrics, so it's important to be cautious when using it near these items. If you accidentally get highlighter ink on your clothes, it's best to treat the stain promptly to avoid permanent damage.
3. Eye Contact: Avoid getting highlighter ink in your eyes, as it may cause temporary irritation or discomfort. If you accidentally get highlighter ink in your eyes, flush your eyes thoroughly with water and seek medical attention if necessary.
4. Ingestion: Highlighters are not meant to be ingested, so it's important to keep them out of reach of children. If a child accidentally swallows a highlighter, seek medical attention immediately.