photochromic-ink on Hacker News: 1 stories with screenshots

Screenshot of livescience.com: Tattoos you can turn on and off

Tattoos you can turn on and off (livescience.com)

62 points by MortyDev 14 days ago | 29 comments

Live Science article about researchers creating multicolored tattoo inks activated by different wavelengths of light, letting tattoos be hidden or shown.

tattoos photochromic-ink chemistry materials-science

#photochromic-ink on Hacker News

Tattoos you can turn on and off(livescience.com)

Tattoos you can turn on and off (livescience.com)