--- product_id: 429092639 title: "Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)" brand: "opticz" price: "£20.20" currency: GBP in_stock: true category: "Opticz" url: https://www.desertcart.co.uk/products/429092639-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink store_origin: GB region: United Kingdom --- # Fast drying alcohol-based Bright blue UV glow Invisible in normal light Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) **Brand:** opticz **Price:** £20.20 **Availability:** ✅ In Stock ## Summary > 🔵 Invisible by day, unforgettable by night. ## Quick Answers - **What is this?** Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) by opticz - **How much does it cost?** £20.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/429092639-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink) ## Best For - opticz enthusiasts ## Why This Product - Trusted opticz brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fast-Dry Formula:** Alcohol-based ink dries quickly to ensure hassle-free stamping and long-lasting marks that resist washing off. - • **Vibrant Blue Pop:** Glows a striking blue under UV light, making your markings unmistakable and eye-catching at glow parties or security checks. - • **Stealth Security Glow:** Invisible ink that only reveals under UV blacklight—perfect for confidential marking and exclusive events. - • **Versatile Size Options:** Available in 2oz to 32oz bottles with quantity discounts—scale your needs from personal use to corporate security. - • **Trusted Brand Reliability:** Opticz’s proven quality with 4.2-star rating and a broad product line ensures you’re investing in dependable UV ink technology. ## Overview Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink is a fast-drying, alcohol-based ink that remains invisible under normal light but glows bright blue under UV blacklight. Available in multiple sizes with quantity discounts, it’s ideal for security marking, glow parties, and document tagging. Safe, non-toxic, and trusted by professionals and casual users alike, this ink offers reliable, long-lasting UV visibility for a variety of creative and security applications. ## Description Our invisible UV ink is a trusted go to source from every day casual users to large corporations. You will be hard pressed to find a comparable ink that outperforms our blend. All purpose invisible UV blacklight reactive inks are ideal for glow parties, hand stamping, documents tags, marking valuables, admissions, and other unique security applications. Designed to stick and stay. Will not wash off easily. Invisible in normal light and glows bright blue under blacklight. This is not printer or tattoo ink. ## Features - Invisible in regular light, glows bright blue in blacklight. The colors really pop in ultraviolet light but are undetectable in normal light. - Choose between 5 sizes discounted by quantity. 2oz, 4oz, 8oz, 16oz and 32oz. - Ideal for glow parties, hand stamping, marking valuables, admissions, and much more! - Safe and non toxic when used as directed. Alcohol based and fast drying. Ideal for stamp pads and rubber stamps. NOT FOR PRINTERS OR TATTOOS. - Trusted Opticz Brand. We also carry a full line of invisible UV ink marker, uv blacklights and daytime visible inks. Click on our brand name OPTICZ to see our entire selection in our storefront! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005X8PKBI | | Best Sellers Rank | #51,323 in Office Products ( See Top 100 in Office Products ) #136 in Bottled Ink | | Brand Name | Opticz | | Container Type | Can | | Customer Reviews | 4.1 4.1 out of 5 stars (767) | | Global Trade Identification Number | 00595013905461 | | Included Components | Ink Bottle | | Ink Color | Blue | | Manufacturer | Opticz | | Manufacturer Part Number | DGINK2OZB | | Model Number | DGINK2OZB | | Number of Items | 1 | | Paint Type | Alcohol | | UPC | 595013905461 890747002302 | | Volume | 2 Fluid Ounces | ## Product Details - **Brand:** Opticz - **Global Trade Identification Number:** 00595013905461 - **Item volume:** 2 Fluid Ounces - **Package information:** Can - **Paint type:** Alcohol ## Images ![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 1](https://m.media-amazon.com/images/I/61p1NYcbmuL.jpg) ![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 2](https://m.media-amazon.com/images/I/619LWBGRsJL.jpg) ![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 3](https://m.media-amazon.com/images/I/61mPG3D0YEL.jpg) ![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 4](https://m.media-amazon.com/images/I/61MsJMJZdIL.jpg) ![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 5](https://m.media-amazon.com/images/I/6177J7hXIwL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What would this look like on black fabric?** A: The ink will still glow in UV light on any surface. The exact appearance would depend on how absorbent the fabric is. **Q: I live in a high crime town,i have lost 5 tables from the front porch,looking for a invisable long lasting ink/marking method so if cops can identify** A: If you mark the underside of the table so that it is not exposed to sunlight or rain, it should work fine. **Q: Can you use if in a fountain pen?** A: Would not be ideal for this purpose. Fountain pen ink is typically water based. Our inks are alcohol based and much thinner than a water based ink. They can work well with calligraphy pens in some cases, but an alcohol based ink would not mesh well with the internal parts of a fountain pen. **Q: What wavelength (nm?) of black light is the ink most sensitive to? i want to purchase some uv leds and want the brightest florescence i can get. thx** A: 385-390NM. Fluorescent black light works the best. ## Frequently Bought Together - Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Carter's Felt Uninked Stamp Pad, 2.75 x 4.27 Inches (21021) - COSOOS 2 Pack UV Flashlight, 12 LED Handheld Blacklight Flashlight 395nm Mini Light Torch Detector for Dog Pet Urine Stains, Bed Bugs and Scorpions. (Batteries not 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.co.uk/products/429092639-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink](https://www.desertcart.co.uk/products/429092639-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-26*