What is it?
Nickel is a hard, rust-resistant metal found in a wide variety of substances, especially in shiny and silvery objects. Nickel is among the most common causes of allergic contact dermatitis. Having a body part pierced by a metal containing nickel is one of the most common ways people become allergic to nickel. Metal objects containing nickel are so common that it is difficult to  avoid nickel completely. Body fluids (sweat and saliva) can cause some metals to release nickel. Stainless steel contains nickel, but most types of stainless steel release very little nickel.
Nickel can also be an occupational allergen, commonly affecting workers such as hairdressers, retail workers, food service workers, cleaners, and metal workers.

Uses:
  • Appliances
  • Batteries
  • Belt buckles
  • Blackening zinc and brass
  • Bracelets
  • Buttons
  • Carriages
  • Ceramics
  • Chalk
  • Cigarettes
  • Coins (especially nickels)
  • Costume jewelry (especially earrings, silver, and white gold)
  • Curlers
  • Dental braces
  • Dental instruments
  • Dentures
  • Door handle
  • Duplicating fluids and fluxes (brazing)
  • Earrings (especially silver and white gold)
  • Eating utensils
  • Electric wiring
  • Electroplating
  • Enamel (green, nickel oxides)
  • Eyeglass frames
  • Eyelash curlers
  • Eye shadow
  • Garter clasps
  • Hair dye and bleaches
  • Hairpins
  • Handbags
  • Heart valve prosthesis
  • Infusion Cannulas
  • Insecticides
  • Keys
  • Machinery parts
  • Medallions
  • Metal arch supports
  • Metal chairs
  • Metal cutting fluids and coolants
  • Metal identification tags
  • Metal parts of furniture
  • Metallic eyelets of shoes
  • Mordant (fixative) in dyes
  • Necklaces
  • Needles
  • Nickel plating for alloys such as new silver, Chinese silver, German silver
  • Orthopedic plates
  • Paint for glass
  • Paint pigments
  • Pens
  • Razors
  • Reagents and catalysts (plastics)
  • Safety pins
  • Scissors
  • Silver work
  • Telephone wiring
  • Thimbles
  • Tools, utensils, and instruments
  • Umbrellas
  • Wallpaper pigments
  • Watchbands and watch strap buckles
  • Wearing apparel (snaps, zippers, and metal buttons)
  • White gold crowns
  • Wire support of bra cups
  • Zippers
Here is a partial list of metal alloys containing nickel:
• Allegheny metal
• Alnico
• Chromel
• Coil alloys
• Constantan
• Monel
• Nichrome
• Nobilium
• Permalloy
• Platenite
• German silver
• Hastelloy
• Illium
• Invar
• Stainless steel
• Ticonium

The additives in these alloys rarely cause contact nickel dermatitis, but since nickel is present, the possibility of dermatitis does exist.

Other names for nickel:
  • Ni
  • Niccolum sulfuricum
  • Nickel sulfate
  • Nickel sulfate hexahydrate
Potential cross-reacting/co-reacting substances:
  • Cobalt
  • Palladium
Spot test for nickel
The nickel spot test consists of an ammoniacal solution of Dimethylglyoxime (DMG) which you can use to detect the presence of
nickel in various metallic objects. The spot test detects free nickel down to a limit of 10 ppm (parts/million). Some strongly allergic
patients will however still react to objects releasing amounts below the threshold of the test.

To order a test kit:
Smart Practice
3400 East McDowell Road
Phoenix, AZ 85008-7899
www.smartpractice.com
Email: [email protected]
Phone: 1-800-878-3837
Fax: 1-800-926-4568
Test kit is called: Reveal & Conceal, Nickel Spot Test™ (Part No. AL8003)

or

Dormer Laboratories Inc
91 Kelfield Street #5
Rexdale, Ontario, M9W 5AQ3
www.dormer211.com
Email: [email protected]
Phone: 416-242-6167
Test kit is called: Chemo Nickel Spot Test (code: NT)

In general, there is insufficient evidence to support the use of a nickel-restricted diet in patients allergic to nickel.


MC2999-20(Sept2024)

How safe is it?

Hang tight. We're thinking.