Hi doctor,I've been struggling with really dark circles under my eyes that seem permanent, and my upper lip is really dark with almost a black lip line. I think I have melasma because I have noticeable pigmentation all over my face my nose, around my mouth, eyelids, under my eyes, sides of my cheeks, and temples. I also have several dark spots from previous acne and new ones forming from ongoing acne, though my acne isn't severe and stays under control when I watch my diet. My main issue is the pigmentation.I don't want to get any advanced treatments, but I'm willing to take medication and follow a skincare routine. Right now, I use a cleanser, toner, eye cream, serum, day/night cream, and sunscreen, but it doesn't seem to be helping. I make sure to apply sunscreen regularly. What can I do to improve my skin?

pigmentation might be due to various causes ,once get your Thyroid levels and blood sugars checked and visit Dermatologist for appropriate management,the products you are using might not be appropriate get a detailed advice from Dermatologist.