A pigment corrector is a skincare product designed to target and reduce uneven skin tone or discoloration, such as dark spots, sun spots, or hyperpigmentation caused by factors like sun exposure, hormonal changes, or aging. These correctors typically contain active ingredients like hydroquinone, kojic acid, alpha hydroxy acids (AHAs), or botanical extracts that inhibit melanin production or promote skin cell turnover, leading to a more even complexion over time. It's essential to use them consistently and follow proper sun protection measures since sun exposure can exacerbate pigmentation issues.