The Ink You Can’t See

The existence of invisible ink is the stuff of romantic tale. For decades, it has been used by spies and clandestine lovers to send secret messages to their mates. Although invisible ink is still used for similar reasons today, it has recently taken on a variety of new and interesting applications.

Hundreds of liquids can be utilised as invisible ink, ranging from fruit juices to carefully designed chemicals. We’ll look at seven of the more intriguing and approachable kinds. We hope this article has sparked your interest in making your own invisible ink at home. You, too, can become a master of steganography (which is the art of creating secret messages, in case you didn’t know!) with a little practise.

Invisible ink