YoungPatrickBateman t1_iwrel6f wrote
Reply to comment by intengineering in I'm John Swierk, assistant professor of Chemistry at Binghamton University, State University of New York. My team and I are working to understand the molecular composition of tattoo inks to provide a broader understanding to artists and consumers. AMA! by intengineering
As someone who has fair skin and many tattoos I can confirm sun exposure contributes to tattoo degredation.
I have a black tattoo around my wrist, around 13 years old, and it has turned a kind of blue-black colour. I’d say my wrist is frequently exposed to sunlight and the most commonly missed part of my body when applying sunscreen. All of my other black tattoos have remained black over the years. They’re in locations which are either covered by clothing or protected by sunscreen.
I also live in Australia - the sun is pretty intense here.
Sence t1_iwrv3h7 wrote
I'm also fair skinned and grew up surfing with fairly diligent sunscreen use but have definitely had more than a few days of sunburn from lack of reapplying. I have a black piece on my upper arm and one on my upper thigh. My thigh almost never sees sunlight and both those 20 year old tattoos have the same level of color degradation.
YoungPatrickBateman t1_iwsqe0v wrote
Interesting. I wonder how much a persons personal biology plays into the degradation of ink in conjunction with external environmental factors.
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