Tip #23
Why does a ring (karat gold) turn my finger or fabric BLACK?
COSMETICS
MEDICATION
CHEMICALS
Cosmetics that contain oxides (very fine abrasives) will rub away at the karat gold jewelry and cause the finger or fabric to turn black.
Changes in body chemistry due to taking medication.
Found in swimming pools (chlorine) and hot tubs (bromine) and laundry products.
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Page last revised October 17, 2000
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