You skin can get dark due to several reasons. It could be constant exposure to sun if you travel or stay out a lot and do not use a sunscreen on your lips, neck and arms. It is essential to use a sunscreen on all the parts that are exposed to the harmful UV rays especially if you stay out a lot. If your sunscreen is not working for you then you would need to switch to a sun block with a higher SPF. That might work. You can use a lip balm with a sunscreen that has a higher SPF to protect your lips from UV rays. It will also help to hydrate them. The dark skin on your neck could be due to sun exposure if you have short hair or it could be due to your jewelry. Sometimes the sweat buildup mixing with certain metals of your jewelry might cause the skin to darken. Remember to clean your chains and necklaces after each use to prevent skin darkening. Besides this you can try using the following home remedies for lightening the darkened skin on your lips, arms and neck:
Make a paste using a tablespoon of lemon juice, half a tablespoon of cucumber juice and half a teaspoon of turmeric powder. Mix well and apply this paste on the affected areas and wait until dry, then wash off with plain water. Lemon is a powerful natural bleach and helps to lighten skin quickly. Cucumber sooths the skin and turmeric helps to restore the skins original complexion. Use this paste daily before going to bed to get the desired results. Make sure that you only use fresh juices of lemon and cucumber, as they are most effective when fresh rather than the stored ones. The turmeric might cause your skin to turn a little yellowish but it will go away once you bathe with soap and water in the morning.
You can also try applying a paste made from a tablespoon of a little sour curd, a pinch of turmeric and a teaspoon of lemon juice. Mix well and apply this on the affected area. Leave on for half an hour and then wash off as usual. This will help to get rid of the tan and will also soften and moisturize your skin.
Another useful remedy if you have a dry skin is to mix a little milk with some honey and cocoa butter and apply to the affected area. Leave on for about 15 to 20 minutes and then rinse off with plain water.
answered by G R