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2. Nickel allergy - Wikipedia

   en.wikipedia.org/wiki/Nickel_allergy

   Nickel allergy is also more prevalent in women (17.1%) than men (3%), possibly due to cultural norms related to jewelry and ear piercings and therefore increased exposure to nickel. [36] In order to investigate the current prevalence of nickel, Loma Linda University , Nickel Allergy Alliance, and Dermatitis Academy, [ 37 ] are conducting a self ...

3. Nickel Directive - Wikipedia

   en.wikipedia.org/wiki/Nickel_Directive

   Allergy to nickel is a common cause of contact dermatitis, with roughly 10% of the population in Western Europe and North America being sensitive to nickel. [1] [2] [3] Initial sensitisation frequently occurs from jewellery such as ear studs and other body piercings, [3] and nickel allergy is more prevalent among women than men.

4. Metal allergy - Wikipedia

   en.wikipedia.org/wiki/Metal_allergy

   Nickel is the most common contact allergen worldwide (of people with contact dermatitis, 11.4% in Europe, 8.8–25.7% in China, and 17.5% in North America are allergic to nickel). [1] Nickel allergy, and contact allergies more generally, can develop when people are any age, but they are most likely to develop in early adulthood.

5. Meghan Markle Wore These Knotted Earrings, and Now I ... - AOL

   www.aol.com/meghan-markle-wore-knotted-earrings...

   Yep, these beauties are also crafted with 14-karat gold plating on hypoallergenic, nickel-free and lead-free brass, per the brand. Like one buyer says, "they look so high-end without the high-end ...

6. Body piercing materials - Wikipedia

   en.wikipedia.org/wiki/Body_piercing_materials

   As said, gold jewelry should only be used in healing piercings if it is nickel free or palladium based. Allergy to gold is uncommon but it does exist, and then mostly from white gold. [9] [10] In some extreme cases, the copper in the jewelry can tarnish and cause greenish discoloring of the tissue. Gold can become discolored from autoclaving ...

7. Niobium - Wikipedia

   en.wikipedia.org/wiki/Niobium

   Niobium oxidizes in Earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel. Niobium is often found in the minerals pyrochlore and columbite. Its name comes from Greek mythology: Niobe, daughter of Tantalus, the namesake of tantalum. The name reflects the great similarity between the two ...