I'm 8 months post HT and have basically always worn a baseball cap when outside except for 2 short 10-15 minute exposures that took place at 4 and 7 months (no burn, not discernible effect).
But I was wondering about the actuall efficacy of standard thickness baseball caps and if it mattered what color they are. I know that white reflects the light and is cooler while black absorbs it and is warmer. But beyond that is there any other outcome from wearing different color caps? Do the sun's rays (and UVA and UVB) penetrate one more than the other?
Lastly, when I hold all of my caps up to a ceiling light, I can definitely see that they do not block out the light fully. If I put my hand behind the hat I can see the shadow outline of my hand.
What does this mean as to the extent to which sunlight is actually blocked out (or should one actually separate the small amount of light that appears to be getting through from the UV radiation that is blocked?).
Also every one of the hats (including the black one I got from the HT doc's office) has a certain gossamer effect when held up to a strong light, in that one can see a vague needlepoint background or shimmering pincushion bleed through of light. Like a very fine mesh of a thousand fine but weak needle points of lights. I repeat, this occurs with every baseball cap I have (all of them seemingly normal thickness, dark color or light).
So to a degree, one has to assume that not all light is blocked out by a standard cap. Question is: is enough of the light blocked out?
I'm sure someone will ask: well how have your results been? I would say, pretty good so far (after 8 months). But I guess it is all relative. Could the small amount of light getting through the hats (if it is indeed penetrating them) be making a difference...i.e., cutting into the results...let's say potentially cutting down the percentage of regrowth by even 5%-10%-20% percent?
Or am I overthinking it? Something I've never been accused of doing before