Can you use hairspray on oil pastel drawings to keep them from smearing?

Yes, you can use hairspray on oil pastel drawings to help prevent smearing, but it's not the best option. Hairspray can sometimes cause discoloration or damage the artwork over time. Instead, consider using a fixative specifically designed for pastels, as it provides better protection without altering the colors or quality of the artwork. Always test any product on a small area first to ensure it won't harm your drawing.