Pigmentation is a major concern for many skin types especially Indian or Asian as melanin production is high which is not exactly a bad thing. Since we live in the tropics and get a lot more of the sun than the rest of the world, melanin protects our skin from the harsh UV rays. It does this by producing more sebum or oil onto the skin’s surface. The problem occurs when the extra oil is exposed to the sun forming a pigmented layer on our skin.
The more your skin is exposed, the more melanin-producing cells get worked up to protect your skin, resulting in excess sebum production. This excess also causes skin pores to get clogged instantly when combined with bacteria and free radicals causing acne which further leads to post-acne blemishes.
A good and zinc included sunblock is the best way to protect the skin from being affected by sun exposure. As for existing blemishes, there is a very effective and hardworking ingredient developed in the skincare industry to treat pigmentation – Kojic Acid.