Hydroquinone has a reputation as a controversial ingredient for skin, yet for more than 50 years it’s been established as the most effective ingredient for potentially fading uneven skin tone, brown or dark spots, and lightening skin.

As always, we turn to the research to reveal why considering hydroquinone for skin lightening is a logical approach depending on what you’re trying to achieve. In the long run, hydroquinone is considered the best ingredient for skin lightening and that hasn’t changed over the years.