Date:   11/26/2011 8:38:44 PM ( 14 y ago)
Hits:   1,475
URL:   https://www.curezone.org/forums/fm.asp?i=1885046

I believe radiation from Sun-like sources is dose dependent before it's considered harmful, much like most drugs, foods, etc...

Why are you trying to get Vitamin D?!

Most tanning beds are calibrated to 95% UVA, not the UVB bands required for Vitamin D synthesis. UVA causes the skin to tan, UVB causes skin burning after too much exposure. If you must tan, ask if they can re-calibrate the bed for you to increase the UVB spectrum between 270 and 300 nm. Vitamin D synthesis supposedly peaks between 295 and 297 nm. Even if the tanning bed is not calibrated, you're still getting 10% or less UVB.


 

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