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Cake day: July 15th, 2023

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  • There seems to be some disagreement, but TiO2 (a very white pigment powder) is generally considered safe and has been used in everything from wall paint to toothpaste for decades. A few studies have suggested possible genetic toxicity, but it may be only from the extremely small nano-particle form. Another study suggested lung problems much like asbestos, but that might be from breathing high level aerosol concentrations. All in all, there’s no clear consensus, which seems like a pretty good sign for such a commonly used material, but the jury is still out.












  • darmabum@lemm.eetoNews@lemmy.world*Permanently Deleted*
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    11 months ago

    This is similar to the claim that using a UV-filter will prevent fading of artworks. While high energy invisible ultraviolet light can be damaging, and visible light in the blue part of the spectrum can also cause damage, and normal clear acrylic is already a fairly good UV filter.

    If you really want to stop the effects of blue light, you would need a strong yellow filter. If you can see blue through the glasses, they’re not blocking blue light.

    Edit: lowering light levels does more than filtering anyway.