Invisible Ink

2 ounce bottle is perfect for testing and sampling. This is that hard to find UV Blacklight Reactive Invisible Ink for hand stamps, box marking, wall decorations, and other unique security applications.  Only visible under black light.  Will not wash off easy like other brands, but can be removed with effort. Great for document marking. Glows bright BLUE under blacklight. Fluorescent and LED blacklights are recommended over incandescent bulbs for best effect. Best viewed in dark or shaded area. Normal light (sunlight or white light) can make the effect less obvious to visually detect. When using, please note that the effect is most intense after several minutes as the ink soaks into and dries on the skin. 2 ounce bottle Alcohol base for quick drying IMPORTANT SHIPPING & DELIVERY NOTES: This item contains a flammable liquid or aerosol (ORM-D Consumer Commodity or Limited Quantity) which cannot be shipped via airplane. Standard surface mail delivery may take more than 10 business days to be delivered. If needed by a certain date, choose an expedited service or contact us to upgrade to UPS Ground shipping for a guaranteed delivery date. Express shipment by Air is not available as dictated by US & International law.