How can i get whiter skin, any treatments, pills or creams, that aren't harmful. i have light brown skin ?

Can use sunscreen: Normal people have whatever skin colors nature gives them, which ranges from very light to very dark. That means normal people DON'T need to get a whiter (lighter) color. If a person doesn't want to darken due to sun exposure, the best cream is a skin moisturizer with sunscreen inside it. Avoiding sunlight will keep skin lighter, but one will need to take extra vitamin D if avoiding sunlight.