Thank-you for your question, Misha. We need to ascertain the cause of this darkening around your mouth. Do you wax or thread the area on a regular basis? Or are you perhaps taking any medications, specifically Hormone Replace Therapy (HRT) or contraceptive? How long has it been this way and does the darkness fluctuate throughout the year? For now, I recommend using Lumixyl and a good SPF, but that is purely a temporary measure until we can establish the cause and focus on that.