Can this product be used to test if nickel is in water (i.e. has nickel leached into water from a container it was in)?

I put it directly on several nickel objects and it did not detect nickel.

Will these work with any cotton swab? Or is there a chemical reagent on the included cotton swabs?

As far as I know ow any cotton swab is fine. The chemicals only react with metal

Does it have an expiration date?

there is no expiration date on Nickel Alert. Just keep the cap tightly closed! Mike Dow, Owner of NoNickel.com

How to fully clean the solution off of products that have been tested?

Just water or a damp rag will do the trick if there is any residue.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Single Bottle - Perform 200+ At-Home DMG Spot Tests for Nickel in Metal (Jewelry, Watches, Buttons, Buckles) - Jewelry Test Kit for Nickel Allergy Protection

Single Bottle - Perform 200+ At-Home DMG Spot Tests for Nickel in Metal (Jewelry, Watches, Buttons, Buckles) - Jewelry Test Kit for Nickel Allergy Protection

Product ID: 174786430

💼compact & travel-friendly

🔬DMG chemistry precision

⏱️200+ rapid tests

₩104452

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔍 Detect nickel before it detects you—because your skin deserves VIP protection.

200 RAPID AT HOME TESTS - Stay ahead of nickel allergies with over 200 quick, reliable spot tests—no lab needed.
SIMPLE DROP AND SWAB METHOD - Effortless testing in seconds—perfect for busy professionals protecting sensitive skin.
COMPACT LONG LASTING BOTTLE - Small footprint, big impact—carry it anywhere and test hundreds of items without worry.
INDUSTRY TRUSTED DMG CHEMISTRY - Detect even trace nickel release with the gold standard dimethylglyoxime reaction.
PREVENT ALLERGIC REACTIONS PROACTIVELY - Identify nickel before it irritates—avoid rashes, itching, and dermatitis with confidence.

The Single Bottle Perform 200+ At-Home DMG Spot Tests kit offers fast, accurate nickel detection using trusted dimethylglyoxime chemistry. Designed for allergy-prone individuals, it enables easy, cost-effective testing of jewelry, watches, buttons, and metal items to prevent nickel-induced skin reactions. Compact and user-friendly, this kit empowers professionals to proactively safeguard their skin with over 200 reliable tests in one bottle.

Specifications

ASIN	B07YZP1YXK
Best Sellers Rank	#105,643 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #343 in Sewing Snaps
Customer Reviews	4.3 4.3 out of 5 stars (228)
Manufacturer	Nickel Smart
Package Dimensions	3.94 x 1.97 x 1.18 inches; 3.2 ounces

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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