Thanks for the query.
Skin care needs to be customized based on the presenting complaints.
Based on your description, it appears that you have facial melanosis which could be compounded by acanthosis nigricans. These conditions have a strong relation to one's internal health and it needs to be evaluated as often quoted - Skin is the mirror of internal health. Attempting treatment without understanding the pathology will be futile and make the course longer. Your dermatologist will decide a treatment plan for you after a consultation. Internal health needs to be fixed based on blood chemistry reports. Apart from active pharmaceutical medicines, a healthy diet and lifestyle is mandatory to achieve results.
Next Steps
Your dermatologist will decide a treatment plan for you after a consultation.
Health Tips
You can consult me online for personal recommendations.