Answer
Jun 03, 2025 - 06:18 AM
Highlighters typically contain a combination of fluorescent dyes, which give them their bright colors, and a solvent, usually water or a water-based solution, to help the dye spread evenly. Additionally, they often contain preservatives to prolong shelf life and thickeners to ensure a smooth application. The exact formulation can vary depending on the brand and type of highlighter.
