Glow-in-the-dark ice cream exists — but that's not even the weirdest part. Its main ingredient is jellyfish protein, which makes each lick brighter and more luminous.

Once the protein extracted from jellyfish reacts with the warm temperature of a tongue, the pH level of the tongue increases to a higher level, causing the ice cream to glow. British entrepreneur Charlie Francis, who founded ice-cream company Lick Me I'm Delicious, invented the fluorescent ice cream.

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Francis came up with the idea after reading a study on jellyfish. He worked with a scientist from China to chemically recreate the jellyfish protein in synthetic form, according to the Los Angeles Times.

Since jellyfish protein is expensive, one scoop sells for 140 pounds ($225). However, the price is not discouraging businesses, chefs and customers from trying the gleaming dessert, Francis told Mashable in an email.

"I grew up on an ice cream farm in the South of Wales, and I've always made ice cream. At Lick Me I'm Delicious, we can make any flavor of ice cream for our clients," he said.

Those concerned about eating part of a sea creature known for its toxic sting will be relieved to know that jellyfish protein is safe to eat — at least according to Francis. "Is it safe to eat? Well I tried some and I don't seem to be glowing anywhere, so we'll go with a yes for now," he wrote in a company blog post.

Known for its original and sometimes bizarre ice-cream flavors, Lick Me I'm Delicious offers an odd assortment of choices, including roast beef, horseradish and Yorkshire pudding, lamb and mint, cheddar cheese, dark port and stilto (an English cheese), and raspberry mojito. What's more, the company once created ice cream with a fire extinguisher, and uses a unique ice-cream making device known as the "Ice Cream Pottery Gramophone Machine."

Francis said he plans to make more unconventional ice-cream flavors in the future, including invisible ice cream and the hottest ice cream in the world.

Image: Lick Me I'm Delicious