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Do you want to write your password down so that no one can see it, or do you want to send someone a secret message? Knowing how to make an invisible ink message will have you feeling like a secret agent in no time.

Dip a paintbrush into some grape juice concentrate or any dark juice. Paint the grape juice over your message and wait for the message to appear.

This method relies on pressure and indentation of the paper.

Thanks for submitting a tip for review!

Things You'll Need

Lemon juice

Water

Small bowl

Spoon

Cotton swab, toothpick or paintbrush

White paper

Light bulb

Baking soda

Whisk

Grape juice concentrate

Milk

White crayon

Watercolor paints

Brush

wikiHow is a "wiki," similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 118 people, some anonymous, worked to edit and improve it over time. This article has been viewed 1,124,569 times.

Updated: February 18, 2021

"The white crayon tip works great! You can also just shade over it with a pencil if you do not have waterpaint available to you." ..." more

"I was stuck with two days left until a science presentation, and as always, wikiHow pulled through! Thanks, guys!"

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Do you want to write your password down so that no one can see it, or do you want to send someone a secret message? Knowing how to make an invisible ink message will have you feeling like a secret agent in no time. Squeeze the juice of...

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heres my work

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housam

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HERE

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Housam

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D O 8  - Omar :)

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here is my work

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Layan