Things absorbed through the skin may be in a different state when they reach your bloodstream than things that are ingested. The process of digestion can break down a lot of things that would otherwise be harmful, but aren't similarly filtered when absorbed through the skin.

It's also why some medicines are taken by swallowing a pill, and some are taken by dissolving a tablet under your tongue.

[–] trolololol@lemmy.world 9 points 2 months ago (2 children)

Does it mean I'm supposed to eat that with gloves,? This is not making sense

[–] EldritchFeminity@lemmy.blahaj.zone 75 points 2 months ago (3 children)

There's a difference between having Dorito dust on your fingers and having it massaged/injected into your skin via microneedling. It's closer to "don't tattoo yourself with Dorito dust" than it is "don't let it get on you."

[–] mjhelto@lemm.ee 11 points 2 months ago* (last edited 2 months ago) (2 children)

I mean, people tattoo with phosphorous (I think it was phosphorous) to get glow in the dark tattoos and that shit's a carcinogen! People gonna people.

[–] Fondots@lemmy.world 23 points 2 months ago

Some glow in the dark chemicals are called phosphors, and while they're named after phosphorus, they usually do not contain any phosphorus, zinc sulfide for example. These are the kinds of things you might find on a watch face or stickers or whatever that need to absorb light from some other source first.

To make it even more confusing, phosphorus isn't actually phosphorescent, its glow is from chemiluminescence, the result of a chemical reaction.

And for what it's worth, stuff that glows under a black light is fluorescent.

I don't think phosphorus has ever been used for glowing tattoos, and if it was I'm pretty sure no one is still using it. We're well outside of my realm of expertise, but it should also be considered that how a chemical enters your body can make a difference in how toxic it is too, there's a whole lot of chemistry at work in your body, and ingesting something and absorbing it through digestion isn't necessarily going to have the same effect as absorbing it through your skin, there's a reason different medications have to be taken oral, allowed to dissolve under your tongue, given as a suppository, intravenously, intramuscularly, subdermally, etc. that said, I'm pretty sure phosphorus is bad no matter how you put it into someone's body.

[–] SturgiesYrFase@lemmy.ml 3 points 2 months ago

My understanding is that phosphates are no longer used, and that most "glow in the dark" tattoos are actually glow under UV tattoos now.

[–] trolololol@lemmy.world 9 points 2 months ago (1 children)

Hey don't give people ideas

[–] DempstersBox@lemmy.world 2 points 2 months ago

Eagerly awaiting my sick-ass radium tattoo

[–] TheLowestStone@lemmy.world 8 points 2 months ago

Additionally, we're talking about using a significantly higher concentration of the dye that you're going to find in Dorito dust.

[–] synae@lemmy.sdf.org 1 points 2 months ago

Chopsticks, my friend.

[–] MonkderVierte@lemmy.ml 35 points 2 months ago* (last edited 2 months ago)

Vinegar isn't good for the skin either. But healthy if ingested.