8. Murad Age Spot and Pigment Lightening Gel
When you want only the best ingredient for a skin brightener, Murad Age Spot and Pigment Lightening Gel is for you. It contains 2% hydroquinone. This percentage is the highest dose available for an over-the-counter product. It works by inhibiting melanin that causes pigmentation. However, hydroquinone has been known to irritate sensitive skin. When using the product, do it once a day before working up to twice a day.