Brief Answer:
Broad spectrum sunscreen+pigment reducing creams

Detailed Answer:
Hello. Thank you for writing to us at healthacermagic

I have gone through your query and I have understood your concern.

You must use a broad spectrum sunscreen, throughout the day.
A sunscreen should be broad spectrum to be effective i.e it should protect against both UV B as well as UV A part of the electromagnetic spectrum.
A sunscreen with minimum spf 30 or more is considered broad spectrum.
It should re-applied every 2-3 hours.

At night you may use a cream containing pigment reducing agent like glycolic acid, kojic acid, hydroquinone etc on face.

Mechanism of action of these pigment reducing agents is either exfoliating of pre-existing melanin Or prevention of synthesis of new melanin Or both.

In addition, you may also opt for a few session of chemical peeling e.g Glycolic acid Or Retinol peel would be quite useful in reducing pigmentation.

Regards

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Brief Answer:
Alpha Hydroxy Acid skin lightening gel

Detailed Answer:
Hi.

Apart from the sunscreen which I mentioned in my previous reply I would suggest that you use a product by Dermatologic Cosmetic Laboratories (DCL) i.e AHA lightening gel, initially once daily at night for a week and thereafter twice daily.

It is available online:

http://www.dermstore.com/product_AHA+Lightening+Gel_23541.htm#reviewAnchor

Sunscreen should be used through out the day, every 2-3 hours, specially if you are outdoors.

Regards

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