1 thought on “czech crystal jewelry wholesale How can you take the skin that the skin is dark?”
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dumortierite wholesale jewelry Consultation record · Answer on 2021-11-28nHow can you take the skin that the skin is black and the skin can be recalled? The discoloration of the gold jewelry or the black hair is closely related to the human sweat. 99%of the person's response is moisture, and the other is about 1%. After lactic acid, urea, etc., after contacting the copper and silver in the jewelry, these substances will produce a chemical reaction and appear dark black chemical salt. This is the fundamental reason why the gold jewelry turns black. Chemical salt will leave black stains on the wearer after falling off the jewelry, and in severe cases, the wearer will have skin allergies.
dumortierite wholesale jewelry Consultation record · Answer on 2021-11-28nHow can you take the skin that the skin is black and the skin can be recalled? The discoloration of the gold jewelry or the black hair is closely related to the human sweat. 99%of the person's response is moisture, and the other is about 1%. After lactic acid, urea, etc., after contacting the copper and silver in the jewelry, these substances will produce a chemical reaction and appear dark black chemical salt. This is the fundamental reason why the gold jewelry turns black. Chemical salt will leave black stains on the wearer after falling off the jewelry, and in severe cases, the wearer will have skin allergies.