uv rays travel from sun for millions of miles so what makes you think that uv rays from tanning bed wont penentrate through some thin piece of material
uv rays travel from sun for millions of miles so what makes you think that uv rays from tanning bed wont penentrate through some thin piece of material
uv rays travel from sun for millions of miles so what makes you think that uv rays from tanning bed wont penentrate through some thin piece of material
Good point, but then there wouldn't be any such thing as tan lines if this were completely true. I suspect it to also be true that areas of skin not normally exposed to UV rays (near armpits, behind knees, and probably cock and balls) are more prone to skin cancer if exposed much.