After second delivery my face and neck become more darker around eyes. Are there any good routines and cream?

Pls tell me a cream to use daily....to get glowing skin.i want a good clear skin.i want to get rid from darkness from my face.also my butt and inner thighs are dark.my hand leg are white.then why my face neck butt inner thighs are so dark.pls doc give me a cream.

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