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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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

⚡200+ rapid tests

🔬DMG chemistry accuracy

🛡️Nickel allergy protection

₩104452

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In stock

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

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🛡️ Protect your skin, test with confidence—never miss a nickel threat!

COMPACT LONG LASTING - One bottle covers your entire collection, making allergy defense cost-effective.
200 RAPID AT HOME TESTS - Stay ahead with over 200 quick, reliable nickel spot tests—no lab needed.
PREVENT CONTACT DERMATITIS - Identify nickel before it irritates—keep itching, rashes, and bumps at bay.
SIMPLE DROP AND SWAB METHOD - Effortless testing in seconds—protect your skin without any hassle.
CLINICALLY TRUSTED DMG CHEMISTRY - Detect even trace nickel with industry-standard dimethylglyoxime technology.

The Single Bottle Perform 200+ At-Home DMG Spot Tests offers a fast, accurate, and easy way to detect nickel release on metal items like jewelry and watches. Using trusted dimethylglyoxime chemistry, it helps allergy-prone users prevent contact dermatitis by identifying nickel before skin contact. Compact and cost-effective, this kit empowers you to safeguard your skin with over 200 reliable tests from the comfort of home.

Specifications

ASIN	B07YZP1YXK
Best Sellers Rank	#155,750 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #487 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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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

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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Smooth transaction and product arrived in perfect condition.

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₩104452

Duties & taxes included

In stock

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

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Great experience from order to delivery. Highly recommended!

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