Based on your photo, you have a hyper-pigmented macular patch which can be melasma.
To make an accurate diagnosis, I will need clearer photos, find out more about your medical history and do a thorough assessment of the skin-care products that you have been using.
In terms of Pigmentation treatment, you should consider medical-grade pigmentation creams and pigment lasers like picosecond lasers to gradually lighten the hyper-pigmentation. Sun-block is also an important step to prevent worsening of this condition.
Please see a trusted doctor for a consult and treatment! Hope that this helps!
Warmest regards,
Dr Justin Boey
