Brightening Angelica uses four different actives to reduce melanin production and brightenthe skin:Angelica extract, which contains imperatorin, which reduces theamount of tyrosinase present in melanocytesArbutin, which inhibits tyrosinase to prevent it producing melanin.Niacinamide (Vitamin B), which stops melanin from transferring from melanocyte to keratinocytes (upper skin cells).Vitamin C, which reduces inflammation and oxidative damage