Yes, products containing preservatives such as methylparaben and propylparaben are generally considered safe when used at approved concentrations, as they help prevent bacterial growth. Most people tolerate them well, but some may develop mild skin irritation or allergic reactions, especially if they have sensitive skin. There have been concerns about hormonal effects, but current evidence shows that the small amounts used in cosmetics and medicines are considered safe and unlikely to cause harm. If you notice any irritation or have sensitive skin, it is best to stop using the product and consult your doctor.