
Gold jewelry’s fade color is due to the sweat or the body’s closely related. 99% people’s sweat is water, but about 1% of human body’s waste and harmful substances, such as: chlorinated material, lactic acid, and urea ammonia. When these substances touch with the gold jewelry, and contact silver and copper, they will produce a chemical reaction, producing silver chloride and copper sulfide, and return a dark chemical salt. Regular session of the chemical salts on gold jewelry from falling will pollute the skin, which makes skin remain clear black stains.
Cosmetics now has become indispensable to people's lives. If applied in the wearing gold jewelry on the skin, there is no doubt that cosmetics’ containing chemicals and chemical erosion fears of gold jewelry takes the opportunity to meet together. The results can be seen. Some cosmetics contain some minor durum, which constitute another type of dirt, will wear gold jewelry. Geographical environmental factors may also cause the loss of beautiful gold jewelry color. For example: the more dry regions, the air contains more original fine dust contamination on the human body, so it will form a "human sandpaper".
Gold jewelry can be extremely fined abrasive debris, such as a partial black stain. It is worth mentioning that the powder or moisturizer also contains similar particles, such as the above, which would like to make pale gold jewelry.Approach: prepare a little alcohol mixed with soapy water wash, and then clean jewelry with it. Dry out when finished.





