Re:Common food dye found to make skin and muscle temporarily...
by permo-w on Thursday September 05, 2024 @07:48PM
(#41461441)
according to this study, tartrazine can cause kidney and liver damage in rats
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5326541/
like an x-ray, I'd risk that for a one-off doctors appointment, but I'd probably not risk it on my body at all times. maybe there are safer dyes that have the same effect
Re:Common food dye found to make skin and muscle temporarily...
by JumpCrisscross on Thursday September 05, 2024 @08:06PM
(#41461555)
> maybe there are safer dyes that have the same effect
Given the effect is optical, perhaps encapsulation in benign, transparent beads? (Could be particularly effective is the goal is a tattoo.)
To expand: "the most hazardous UV radiation has wavelengths between 240 nm and 300 nm" [2]. While tartrazine has a lambda max at 425 nm in water [2], it has a second ridiculously-convenient peak around 260 nm [3].
TL; DR It should be mildly UV protective ceteris paribus.
[1] https://ehs.umass.edu/sites/default/files/UV%20Fact%20Sheet....
[2] https://pubchem.ncbi.nlm.nih.gov/compound/Tartrazine#section...
[3] https://www.aatbio.com/absorbance-uv-visible-spectrum-graph-...