--- product_id: 3620920 title: "Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)" brand: "opticz" price: "Β£13.35" currency: GBP in_stock: true reviews_count: 10 category: "Opticz" url: https://www.desertcart.co.uk/products/3620920-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink store_origin: GB region: United Kingdom --- # Bright blue glow under UV Invisible in normal light Fast drying alcohol-based ink Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) **Brand:** opticz **Price:** Β£13.35 **Availability:** βœ… In Stock ## Summary > πŸ”΅ Illuminate the unseen, own the 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?** Β£13.35 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/3620920-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 - β€’ **Size Your Impact:** Available in 5 sizes with quantity discounts to fit every need and scale. - β€’ **Trusted Brand Power:** Opticz quality ensures consistent performance and a full line of UV ink solutions. - β€’ **Safe & Skin-Friendly:** Non-toxic formula trusted for use on skin and multiple surfaces with no irritation. - β€’ **Stealth Mode Activated:** Invisible ink that stays hidden until UV reveals its vibrant blue glow. - β€’ **Party-Ready & Versatile:** Perfect for glow parties, stamping, marking valuables, and creative projects. ## Overview Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink is a fast-drying, alcohol-based ink that remains invisible in normal light but glows bright blue under UV blacklight. Available in multiple sizes with quantity discounts, it’s ideal for creative marking, glow parties, and security applications. Safe, non-toxic, and trusted by thousands, this ink delivers reliable, vibrant UV-reactive results on various surfaces including skin. ## Description Product description Invisible UV Blacklight Reactive Ink by Opticz Our Opticz brand invisible UV ink has been a trusted go to source from every day casual users to large corporations for 10+ years! Manufactured and distributed by DirectGlow exclusively, you will be hard pressed to find a comparable ink that outperforms our brand in quality or cost! All purpose Opticz invisible UV blacklight reactive inks are ideal for glow parties, hand stamping, documents tags, marking valuables, admissions, and other unique security applications. Will not wash off easily like other brands. Invisible in normal light and glows bright blue under blacklight. Completely safe for skin and body when used as directed. Alcohol based for quick drying. Not for use with printers or tattoos! So many uses Perfect for secret messages, marking merchandise, and other stealthy security uses. Glows an incredible bright blue in blacklight. Ideal for metal, glass, plastics or paper. Can also be used on aluminum, ABS, acrylic, rubber, cellulose, acetate, formica, nylon, polystyrene and polyethylene. Totally invisible and won't wash off easily. Ink is non-toxic when used as directed, fast-drying and non-transferable. Ideal for applying onto an already printed surface. Undetectable in normal light Applies to the skin crystal clear. Ink will not be seen until a UV light directed toward the application area. Great for admissions, document marking, secret messages or anywhere you need to conceal the ink from prying eyes. Blazing bright in blacklight! Once the applied surface is exposed to blacklight, the ink will illuminate brilliant blue revealing your hidden mark or message. Whether you need a little or alot, we have a size for you! Our size options are offered in 2 ounce, 4 ounce, 8 ounce, 16 ounce and 32 ounce. get the right amount of ink you need to get the job done. SDS sheet availabe upon request Review: This stuff is excellent- but truly an ink, not a paint. - This product is easy to use and looks great under a black light. I've painted plastic, metal, fabric, paper and resin with minimal issues. I found that painting over fabric is particularly successful, and white is best. I was glad that I read the reviews that indicated that while this works well- it is very thin. On occasion, you do need a few coats to really pop- particularly if the object isn't stark white. This didn't show up on anything I painted in normal light- and is very much invisible until revealed by blacklight. This is exactly the answer to what I was looking for, for personal projects. I would buy again. Review: Worth the Price - I thought it wasn't going to be good quality and last long on the skin. However, it actually lasted 2-3 days on my skin. I was really testing it out with intense scrubbing and soap, and it still showed under UV light. I think it's perfect for events because it doesn't wear out easily. I also think that it's bright enough for darker skin tones because it glows really well like in the picture that it shows. Just don't forget a UV light, and a blank ink pad. :) hope this helps lol (will be updating after an event for a better review) Update: It did well especially on different skin tones, and also on sweaty kids :) ## 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 | #50,118 in Office Products ( See Top 100 in Office Products ) #56 in Bottled Pen Ink | | Brand | Opticz | | Brand Name | Opticz | | Container Type | Bottle | | Customer Reviews | 4.2 out of 5 stars 1,064 Reviews | | Global Trade Identification Number | 00595013905461 | | Ink Color | Blue | | Item Volume | 2 Fluid Ounces | | Manufacturer | Opticz | | Manufacturer Part Number | DGINK2OZB | | Model Number | DGINK2OZB | | Number of Items | 1 | | Package Information | Bottle | | 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:** Bottle - **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) ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ This stuff is excellent- but truly an ink, not a paint. *by A***R on October 21, 2022* This product is easy to use and looks great under a black light. I've painted plastic, metal, fabric, paper and resin with minimal issues. I found that painting over fabric is particularly successful, and white is best. I was glad that I read the reviews that indicated that while this works well- it is very thin. On occasion, you do need a few coats to really pop- particularly if the object isn't stark white. This didn't show up on anything I painted in normal light- and is very much invisible until revealed by blacklight. This is exactly the answer to what I was looking for, for personal projects. I would buy again. ### ⭐⭐⭐⭐⭐ Worth the Price *by B***S on June 21, 2021* I thought it wasn't going to be good quality and last long on the skin. However, it actually lasted 2-3 days on my skin. I was really testing it out with intense scrubbing and soap, and it still showed under UV light. I think it's perfect for events because it doesn't wear out easily. I also think that it's bright enough for darker skin tones because it glows really well like in the picture that it shows. Just don't forget a UV light, and a blank ink pad. :) hope this helps lol (will be updating after an event for a better review) Update: It did well especially on different skin tones, and also on sweaty kids :) ### ⭐⭐⭐⭐⭐ Awesome *by R***Z on June 17, 2025* It works very well. Completely clear without a blacklight. No issues with skin. Used it on face, neck and arms. Lasted all night of dancing amd probably more. ## 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. 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