The Original Invisible Ink pen contains High Quality Invisible Ink that does not dry out when capped and stored and will make 1,000 marks. Beware of cheap imitations.
(not recommended for use on skin or as a cosmetic)  These are NOT Germ pens. If you are looking for a germ marker, click here.

This is the perfect invisible ink pen for identification marking. Black light reactive and glows an incredible bright blue, Red, or Yellow. Works on a variety of surfaces. Totally invisible only visible with UV Black light. Goes on clear. Felt sharp tip applicator.

Size: .375 x5.5"
Exterior color: black no imprinting
Ink color: Blue under black light
Individually wrapped

This Pen can be used for several applications including Property marking, industrial and manufacturing, documents, retail and and ecommerce. Sellers mark products to protect  against fraudulent returns. Warehouses use them to mark boxes. Not recommended for skin.

Use just as you would a regular pen. Test on surface in an inconspicuous area to determine results. Surfaces may vary and some surfaces such as high brightness copier paper may already have similar elements present in invisible ink and can obscure the effect. Some glossy surfaces may show an outline. Certain plastics may rub off. Be sure to use a true black light as party style incandescent bulbs will not be sufficient. Simply mark the item and then reveal using a UV black light.


Invisible ink and Invisible ink pens are great for property, document, and marking all kinds of surfaces and applications. Great for secretly marking valuables and other items. Only visible under a black light.

Invisible Ink Pens can be used for marking personal belongings and valuables or items for resale. Ebay sellers love to use these to make sure they don't get items back they never sent out. They are great for paper marking of documents and other important papers that you don't want to be duplicated. 

What is "Invisible Ink" and what is it used for? 
Click here for a brief history of invisible ink and it's application.

Choose from several different options below including marking kits and light choices.

We now also offer Invisible Ink Markers with more ink and wider tips, located here.

Basic Black light Invisible Ink Pen Identification Kit

6 inch flourescent light with our black light reactive invisible ink pen High Quality. Great for portable use.
This is the perfect kit for property and document writing. You can mark many different items. On porous surfaces ink will be very difficult to remove.Totally invisible.  Not for recommended for skin.Our high quality 6 inch black light is a great companion to our pen but also has a large number of uses. Black Light has many uses beyond pen applications. Fits easily in a shirt pocket or purse. (Requires 4 AA batteries not included)

Use the Drop Down menu to order more than one invisible ink pen and get a quantity discount.
Refillable Ink Marker Kit 
Looking for a refillable solution for invisible ink marking?
Our latest kit offers a refillable Ink Marker with an 8 oz bottle of all purpose blue invisible ink.

Invisible Ink Marker kit Click here to order 
Penlight Black light Invisible ink pen ID kit 

This kit is even more portable than the ID kit. Includes a Very bright LED penlight.the perfect kit for property and document writing. You can mark a variety of surfaces. Totally invisible. Our New Penlight can fit easily in a pocket and includes batteries making this a great kit. (1 AAA Battery not included) 

SALE $6.95

Looking for more lights? 
All of our Black light LED flashlights are designed to work with our invisible ink. They are durable, and are great for technicians, security and police officers, automotive mechanics, or anyone who requires a black light that is bright and reliable.

See all of our black light flash lights here.

Invisible Ink Pen Pro Marking kit

High Quality very bright. Great for portable use.This is the perfect kit for property and document writing. You can mark a variety of surfaces totally invisible and permanent on most porous surfaces. May rub off on some non porous surfaces so be sure to test before quantity orders. Our high quality flash light black light is a great companion to our pen but also has a large number of uses beyond pen applications. 9 LED Black Light Flash Light16.90

We have bundled the following pens with some of our lights to get you up and marking quickly.
Choose Quantity
Invisible Ink Pen Micro LED Black light keychain Marking kit

Our famous invisible ink pen meets our new member of the family and smallest black light, the Superbright Micro LED Black light. You can choose individual lights or the pen and light kit from the drop down menu below.

Choose Options below
These pens are generically packaged and unmarked perfect for resale or imprinting. available in lots of 100 or more at a discount.
Choose your quantity. Discounts are offered based on packaged quantities and volume. 

Choose Ink Color
Choose Quantity And Ink color
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Our customers asked for a pen with a built in light and here it is.
Make invisible marks and use the built in light on the end to view.

Loaded with special ink that is only visible under UV light
Includes a mini LED UV black light with batteries, allows you to view your messages. Writes on a variety of surfaces permanently. Glows a bright blue under Black Light. Not recommended for skin or cosmetic applications.

Invisible Ink Pen Light 
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