Detailed answer

Skin brighteners contain ingredients that can help reduce the appearance of freckles by inhibiting melanin production. These ingredients, such as kojic acid, vitamin C, and niacinamide, work by suppressing the activity of tyrosinase, an enzyme involved in melanin synthesis. Regular use of skin brighteners can gradually lighten freckles and improve overall skin tone. However, it is important to note that the effectiveness of skin brighteners can vary depending on the individual and the severity of freckles. It is also crucial to use SPF protection to prevent further darkening of freckles when using skin brightening products.