I had been searching for this type product everywhere, locally and on the internet. I found a link on the internet (Pinterest) to a website in the UK. When I went there, it referred me to my local Walmart, 3 miles away. This product is awesome. It does exactly what it is supposed to do, beautifully. So far, I have used it to write messages to my daughter on bright construction paper. It GLOWS as soon as you turn out the light. Even the \"smudges\" where I wiped my fingers on a paper towel glow all the way across the room. When you use a blacklight, it is gorgeous (although simple darkness is enough to get a true glow). I bought 5 bottles and will buy more. Any child or crafter would be thrilled with this. I also bought some glow in the dark paint and glitter from another source at around the same time, for a lot more money. NEITHER of those lived up to my most minimal expectations. This glitter glue, however, rocks.\n\nTo answer the other customer's question: although I have not tried to make Glow in the Dark slime with this, based on what I have done with it, I am confident it would work well.