Video: what makes tattoos permanent?

How are tattoos actually ‘put’ into our skin? How do they stay permanent over time?

This cool video from TED explains the basics of how a tattoo actually works and how it stays visible on our skin as we get older.

I could watch TED Talks all day – they create insightful videos from expert speakers on a range of subjects and they are free to stream online.

Watch below or find out more on the TED website.

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