Saturday, October 10, 2026
Science

Light-responsive inks could make tattoos visible on demand, but safety remains unproven

A team of engineers has designed a new line of multicolored tattoo inks that switch on and off with different kinds of light. Described in a study published in Matter & Light, the technology could one day help people hide their tattoos when they have an important business meeting. They could even do...

Light-responsive inks could make tattoos visible on demand, but safety remains unproven
Image: Phys.org
A team of engineers has designed a new line of multicolored tattoo inks that switch on and off with different kinds of light. Described in a study published in Matter & Light, the technology could one day help people hide their tattoos when they have an important business meeting. They could even doodle on their own skin using a simple laser pointer.

Originally published at Phys.org

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