what is the SPF of hair?

September 23, 2008 at 5:28 pm | | crazy figure contest, literature, science@home

Hair provides about SPF 10 UV protection to the head. At least according to this recent paper: Parisi, et al. Solar Ultraviolet Protection Provided by Human Head Hair. Photochem. Photobiol. 2008. The intersting thing is that long hair provide about the same or even less UV protection than short hair. The authors posit that this could be because long hair is more likely to part and expose the scalp.

Oh, that’s how they did it.

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