Scary stuff here. Or, rather, it’s meant to be.
Alert: Damaged DNA and Increased Cancer Risk Linked to Common Grooming Tool, Study Warns
A new study has revealed that the ultraviolet light from UV nail dryers may increase the risk of developing cancer-causing mutations and can damage DNA.
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However, the researchers found that human and mouse cells died when exposed to the typical amount of radiation used in UV nail dryers.
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“Once I saw the effect of radiation emitted by the gel polish drying device on cell death and that it actually mutates cells even after just one 20-minute session, I was surprised,” she said in the news release.“I found this to be very alarming, and decided to stop using it.”
Hmm. As always, let’s go to the actual study and see what they did.
Based on the manufacturer’s specifications, the UV nail drying machine emits ultraviolet A light in wavelengths between 365 and 395 nm.
That would be what we call UVB. That’s important.
Primary mouse embryonic fibroblasts (MEFs) were purchased from Lonza (M-FB-481).
There’s a big red flag. Embryonic fibroblasts. Not skin cells, which evolved to deal with UV. When you take that with the UVB exposure… Consider what WHO has to say about UVB.
Medium-wavelength UVB is very biologically active but cannot penetrate beyond the superficial skin layers.
So right off, our trusty researchers are exposing sensitive internal tissues to UV that normally, they’d never see. But it gets better worse.
Cells were irradiated with a UV nail polish dryer, acutely (i.e., twice a day, with 60 minutes break between each of the 2 sessions) as well as chronically (i.e., once every day for up to 3 consecutive days).
Show of… um, hands: How many of my readers get their nails done twice a freaking day, and then get them completely re-done daily after that?
What these clowns discovered is that sterilizing UV radiation will sterilize UV sensitive cultures — i.e.- not skin — when seriously over-exposed for days. Looking at UV levels in my area, and what their experiment used, I can approach that same level of exposure in a day at the beach; and without sunscreen, I’d be pretty sun-burned. Let’s see them try setting their cultures out in direct sunlight.
I’m gonna guess that the ladies aren’t going to be killing themselves by getting their nails done once every month or two.
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