---
product_id: 4940493
title: "Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen"
brand: "asr tactical"
price: "$20.79"
currency: USD
in_stock: true
reviews_count: 8
category: "Asr Tactical"
url: https://www.desertcart.us/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen
store_origin: US
region: United States of America
---

# Ink fully vanishes in ~1 hour Writes up to 2500 feet 15 min visible ink window Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen

**Brand:** asr tactical
**Price:** $20.79
**Availability:** ✅ In Stock

## Summary

> 🕶️ Write it. Watch it vanish. Own the secret.

## Quick Answers

- **What is this?** Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen by asr tactical
- **How much does it cost?** $20.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen)

## Best For

- asr tactical enthusiasts

## Why This Product

- Trusted asr tactical brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Authentic Pen Design:** Looks and feels like a regular fine-point gel pen—blend in while standing out.
- • **Stealth Ink Technology:** Disappears within an hour, perfect for confidential notes and secret messages.
- • **Cold War Secret Formula:** Developed for espionage, now your everyday tool for privacy and intrigue.
- • **Ambidextrous & Smooth Grip:** Comfortable for all users, making secret writing effortless and stylish.
- • **Long-Lasting Write Capacity:** Up to 2500 feet of disappearing ink for endless covert creativity.

## Overview

The ASR Tactical Invisible Ink Pen uses a Cold War-era disappearing blue gel ink formula that remains visible for 15 minutes before fading completely within an hour. Featuring a fine 0.5mm point and a clear plastic case, this ambidextrous ballpoint pen writes up to 2500 feet, blending authentic pen aesthetics with covert functionality—ideal for professionals craving privacy and a touch of espionage flair.

## Description

Need to leave a note for someone, but don't want to them to be able to show anyone else? The disappearing ink pen will allow you to do just that.This special formula was developed during the Cold War and is now encapsulated within the discreet gel pen for general use. Once on the paper, the ink will appear normally for about 15 minutes. Within an hour, the message will have completely vanished and will be unrecoverable; even with ultraviolet light.Note: deconstruction time of the ink will vary depending on ambient conditions.

Review: Amazing pen, I went To Vegas and took out ... - Amazing pen, I went To Vegas and took out a huge loan with the casino, I used this pen to sign the loan and now I'm debt free. Don't feel to bad for the casino though folks, I lost it all trying to double it up on black in roulette.
Review: its a nice pen, however useless . - I requested this item to review it from security point of view. The item was received in a good conditions, however, its not as expected and don't think it can be used for fraudulent attempt.

## Features

- WATCH THE VIDEO: Once on paper, the ink appears fully legible and undiscernable from a normal pen for 15 minutes but slowly starts to disappear; fading within 20-30 minutes; completely after about an hour
- REALLY WORKS: Looks like a real pen with no markings to distinquish it otherwise. Nine out of ten times, you might pick this pen out of a cup of many; it looks like a pen you would want to use; Magicians, spys and secrects oh my
- WRITING CAPACITY: Invisible formula ball point pen will write up to 2500 feet before running out of ink; lots of use and entertainment for all ages
- SPECIFICATIONS: Fine Point; Size: 0.5mm; Ink Color: Blue; Pen Case: Clear
- WARNING: Do not use on any legal document or financial instrument

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0036QU40Q |
| Additional Features | Disappearing Ink |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Body Shape | Round |
| Brand | ASR Tactical |
| Brand Name | ASR Tactical |
| Closure Type | Snap |
| Color | Blue |
| Customer Reviews | 3.4 out of 5 stars 31 Reviews |
| Drill Point | Fine |
| Grip Type | smooth |
| Hand Orientation | Ambidextrous |
| Included Components | Disappearing Ink Pen |
| Ink Base | Hybrid |
| Ink Color | Blue |
| Item Diameter | 0.05 Inches |
| Item Dimensions | 6 x 0.5 x 0.5 inches |
| Item Type Name | Invisible Ink |
| Item Weight | 4.54 g |
| Line Size | 0.5mm Millimeters |
| Manufacturer | ASR Tactical |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | Magic Disappearing Ink Pen |
| Model Number | KGBDIP-647 |
| Pattern | Solid |
| Recommended Uses For Product | Writing |
| Style | Disappearing Ink Pen |
| Theme | Writing |
| Unit Count | 1.0 Count |
| Writing Instrument Form | Ballpoint Pen |
| Writing Technique | gel ink, ballpoint |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** ASR Tactical
- **Color:** Blue
- **Ink Color:** Blue
- **Writing Instrument Form:** Ballpoint Pen

## Images

![Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen - Image 1](https://m.media-amazon.com/images/I/51oosoYfO2L.jpg)
![Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen - Image 2](https://m.media-amazon.com/images/I/71TYcZnvvVL.jpg)
![Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen - Image 3](https://m.media-amazon.com/images/I/41Q2X8C9vSL.jpg)
![Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen - Image 4](https://m.media-amazon.com/images/I/51chMFEfAJL.jpg)
![Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen - Image 5](https://m.media-amazon.com/images/I/51w42VYpYyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing pen, I went To Vegas and took out ...
*by A***W on September 6, 2014*

Amazing pen, I went To Vegas and took out a huge loan with the casino, I used this pen to sign the loan and now I'm debt free. Don't feel to bad for the casino though folks, I lost it all trying to double it up on black in roulette.

### ⭐ its a nice pen, however useless .
*by B***L on June 16, 2011*

I requested this item to review it from security point of view. The item was received in a good conditions, however, its not as expected and don't think it can be used for fraudulent attempt.

### ⭐⭐ Look Fast
*by B***K on July 3, 2010*

The good news..... this ink disappears completely as advertised. The bad news is that it only looks like regular ink for about a minute and then you start to see fading. It is totally gone in 15 minutes. I needed it to look normal for about 3 minutes... but it is pretty faded by that time. So it will not work for me.

## Frequently Bought Together

- ASR Tactical Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen
- Daemson Invisible Ink Pen, Spy Pen with 9 PCS Mini UV LED Keychain Flashlight, Disappearing Ink Magic Pens with Black Light Markers for Secret Notes, Fit for Christmas Halloween Holiday Gifts (9 PCS)
- Lighting EVER Black Light Flashlight, Small UV Lights 395nm, Portable Ultraviolet Light Detector for Invisible Ink Pens, Dog Cat Pet Urine Stain, AAA Batteries Included

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen](https://www.desertcart.us/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-09*