Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that you have got generalized
hyperpigmentation on face leading to darkening of skin and dark circles around mouth..
I would suggest you to start washing your face with
Salicylic acid and
glycolic acid containing facewash..
You can start applying
depigmentation creams containing Kojic Acid, Glycolic acid and arbutin..
You can apply Vitamin E and C containing creams..
You can also apply tea tree oil and grapeseed extract containing creams..
You can also exfoliate your skin twice a week using a gentle scrub..
Limit sun exposure and always apply sunscreen lotion when exposed to sun..
You can take Vitamin C supplements..
You can also go for treatments like
Microdermabrasion and chemical peeling..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.