Hyperpigmentation spots on the arms and legs can occur as a result of excessive sun exposure, certain diseases and old age. The spots are a sign of increased melanin in the skin as a way for the body to combat damaging UVA and UVB rays from the sun. A variety of treatments exist including home remedies using a fresh lemon or more powerful chemical treatments using a specially formulated skin bleach.

Use lemon juice or half of a lemon. Rub the lemon deep into the skin on your arms and legs to gradually lighten the hyperpigmentation spots. The citric acid exfoliates to reveal new skin and lightens dark spots simultaneously.

Use skin bleach like hydroquinone. This is a powerful skin bleach that is available over-the-counter and by prescription in its stronger form. Rub the lotion on hyperpigmentation spots on your legs and arms twice a day. The spots will disappear within a few months of regular use.

Rub Vitamin E infused lotion on the spots daily. Any body lotion that contains Vitamin E will work to fade away hyperpigmentation spots on your arms and legs. Apply this lotion at least once a day.

Rub castor oil on the hyperpigmentation spots. Castor oil is a natural skin lightener that will fade out the dark spots on your arms and legs over a few months time.

Exfoliate with a body scrub a few times a week. Scrub your legs and arms with an exfoliating lotion every time you take a shower. The exfoliating action will remove hyperpigmented and dead surface skin cells to reveal lighter, healthier skin underneath.