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You find a bracelet you really like. You worry, does it contain Nickel? Now, finding an answer can be as close as your medicine cabinet, first aid kit, purse, or backpack. Sounds strange, but some people really are allergic to certain metals such as Nickel and they can suffer either an acute or chronic itchy rash that can have small blisters containing a clear fluid, skin that is red, swollen, oozing, or peeling. Protect yourself and your family with this Smart Practice Reveal & Conceal Nickel Allergy Spot Test Kit. An easy to use disposable solution that is safe and effective with results in a matter of seconds. Simply remove and reverse white sleeve to expose test swab. Hold tube between fingers and easily squeeze the white tube cover until you hear the SNAP allowing the liquid to soak the applicator tip swab. Rub the wet swab against the object of choice for 30-60 seconds. If the wet area of the swab tip turns a light pink to strawberry-red color, the test is positive and indicates cobalt is present. If there is no color change, the test is negative and indicates there is no nickel present. If nickel is detected, simply coat the object with the Clear Coat to prevent direct nickel contact. Repeat applications may be necessary depending on the contact duration and frequency. Kit includes: (10) 0.4ml test swabs and (1) 3.7ml clear coat.