Replying to @berryscarry09 hyperpigmentation is multifactorial but for pih specifically its about already deposited melanin so speeding up cell turnover can help which retinoids and chemical exfoliants are great for. Regular tyrosinase inhibitors and niacinamide use can help prevent it in the future. #hyperpigmentation #hyperpigmentationtips #tyrosinaseinhibitor #remedyfordarkspots #theordinaryazelaicacid #niacinamide #retinol #postinflammatoryhyperpigmentation