There can be several causes why your skin would turn dark or you may get pigmentation. Sun tan, overweight, pigmentation disorders like acanthosis nigricans or melasma, nutritional deficiency etc are some conditions. Unless someone examines you, we cannot know the cause. Unless we find out the cause it is difficult and pointless to treat. Please call me or send photos with detailed history using online consult option for examination and proper treatment.,

Undergo glutathione therapy.... Otherwise, few creams also available.. contact me by direct online consultation for treatment.

Yes , first of all ur expectations should be realistic that is if covered areas like chest and inner side of arms are fairer or one to two shade lighter in complexion , u can expect improvement with sunblock and oral sunscreens . Vitamin C , hydrocurcumin , azelaic acid can also be helpful. Glutathione capsules / drip or creams can also make ur complexion lighter one or two shades . Skin lightening peels , laser toning can also improve colour tone.

if your natural skin complextion is darker, there are skin care regime that could make your skin healthier, smoother and better. if you want to lighten your natural skin colour, do consult with a cosmetic dermatologist. there are options to lighten the skin colour . but do it under a qualified cosmetic dermatologist.