Believe me, if you are happy from inside and taking nutritious, healthy food and daily yoga
or some kind of exercises, it will be automatically reflected on your face. Yes, the colour which is inherited from your parents/ ancestors, cannot be changed, but you can try to get glow on your face!!
Apart from these, you do follow CTMP, i.e., cleansing, toning, moisturising and protection (apply liberally sunscreen with SPF-30 ? a thick layer of Bakson's Suncare cream may be, 20-30 minutes before going out daily and repeat it's application after every 3-4hrs.) after washing your face daily; use the products as per your skin type. This will change the skin texture and skin tone.
In case you do have tanning, apply honey with a dash of lime on your face.
You can also use homoeopathic cream - Medicynth's Whitch Hazel daily at night.
Eat right and healthy that too on time, relieve your stress
/ tensions, sleep well, lead a healthy lifestyle!
If the dull skin
tone is due to any underlying ailment or diseases, need to look into the matter.