Why knees are dark

Here are the best preventive methods:. Moreover, some home remedies — particularly those containing mercury or hydrogen peroxide — can be harmful. Hyperpigmentation is a condition that causes skin to darken. While typically harmless, increased skin pigmentation can be caused by several things. While there's little scientific evidence that aloe vera can reduce the appearance of hyperpigmented areas of skin, many people report that it works to….

Dark spots caused by acne are technically called post-inflammatory hyperpigmentation. This occurs after the inflammation of the pimple subsides and…. Dark spots on your legs, or hyperpigmentation, can be caused by many factors.

There are many ways to remove dark spots, including home remedies, OTC…. Age spots are flat brown, gray, or black spots on the skin that usually occur on sun-exposed areas.

Here are 16 of the best sunscreens on the market in spray, lotion, and solid forms, and for different needs. They're tried and true. Everyone can benefit from a good facial cleanser, and many products are specially formulated for dry, sensitive skin.

Blue lips are most often caused when something is preventing you from getting enough oxygen into your body. Read on to discover some of the causes of…. Health Conditions Discover Plan Connect. Causes Natural remedies Dark spots Precautions Prevention Takeaway Dark knees happen when the skin on your knees is darker than other parts of your body.

One benefit is that it provides curcumin. In a study , researchers looked at curcumin as a potential natural treatment for lightening skin. They discovered that turmeric helped block the processes that caused the extra pigmentation.

It is possible that using a homemade cream containing turmeric may help lighten the knees if a person applies it topically. Green tea is another potential skin lightening agent. It contains a compound called epigallocatechin gallate EGCG.

In a study from , researchers found that EGCG helped prevent the creation of enzymes responsible for making melanin. Therefore, using a green tea extract in a homemade ointment may help lighten the skin.

However, there is not much research to support this use. Scientists will need to conduct more research to confirm the skin-lightening effects of green tea extract on skin pigmentation. Applying black tea to the skin may also lighten it. One study looked at the effectiveness of black tea extract on hyperpigmentation in brown-skinned guinea pigs.

As a result, the researchers concluded that black tea extract prevented melanin proliferation in the guinea pigs and lightened darkened areas of their skin. A later test-tube study in supported these findings. It showed that black tea extract applied to mouse melanocyte skin cells prevented melanin production and synthesis. The researchers concluded that black tea extract might be a useful skin lightening agent for the cosmetic industry to consider for further research.

It is important to note that researchers did these studies in animals and test tubes, respectively, not in humans. Therefore, scientists need to carry out more research in humans to investigate how black tea may affect skin pigmentation.

While there is not much research to back its effectiveness, an ointment containing black tea extracts may help lighten the skin. Many people use aloe vera to relieve skin following sunburn or another minor skin irritation.

Researchers did this experiment in humans, so it provides some sound evidence. However, the study is from , and scientists need to do more research into the effects of aloe in lessening skin darkening from sun exposure.

A person can find aloe vera cream and ointment over the counter OTC at nearly any pharmacy or online. Related Questions. Can you give me some information about dermal fillers? How long do they typically last, and are there side effects? Of all the dermal fillers currently on the market, which one do you think is the best? My daughter has had a horrible rash around her eyes and sometimes ears for the past two years.

The rash is not itchy, gets really dry and seeps at times. Do you have any suggestions? Back to Skin and Beauty. The Sutter Health Network of Care. Expertise to fit your needs. Primary Care. Check-ups, screenings and sick visits for adults and children. Specialty Care. Expertise and advanced technologies in all areas of medicine.