Researchers developed tattoo inks that can be switched on with ultraviolet light and made to disappear in sunlight; tests found the colours remained switchable in skin for up to 2.2 years, opening pos
A tattoo has traditionally been a commitment etched into the skin, with removal often involving multiple laser sessions, discomfort and considerable
Researchers hope to bring additional colours to market and reduce production costs as development progresses. Questions about long-term safety, performance and practical use will also matter as the technology advances. A tattoo has traditionally been... [4903 chars]
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- Science
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- The Times of India
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- Sunday, 11 October 2026, 4:55 pm IST
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- One outlet so far
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