sade087

Is your hair fine, medium, or coarse? It's not always easy to tell. Healthy hair and dry, environmentally-stressed hair may feel and look very different. You may think your hair is coarse (wide) when it really has some fiber twists and bends (kinking) or is "medium." Dry hair is often described as "coarse" feeling because it feels rough. ©Science-y Hair Blog 2013 Measuring is the best way to find out what the dimension of anything actually is. Hair is measured in microns. There are 1000 microns in one millimeter.  ©Science-y Hair Blog 2013 Hair Diameter Categories: ©Science-y Hair Blog 2013 Fine hair: Less than 60 microns (16 or more hairs per millimeter) Medium hair: 60-80 microns (12 to 16 hairs per millimeter) Coarse or wide hair: 80 microns or greater (fewer than 12 hairs per millimeter) To do this test, you need about 20 hairs which you have shed, and a metric ruler.  How to choose your sample: We're assuming that hairs you've shed while washing or ...

Everybody’s hair is different. It’s really the combination of chemical and physical properties of, and environmental influences on your hair that make it unique, no matter what your heritage or what you do to your hair. Most of us have a mix of hairs on our heads – different diameters, different textures, some variation in color from follicle to follicle. But if you can get over aesthetics - hair color and the visual stuff, there’s some fun physics/engineering in there. I have mostly fine hair and those of us who do know it is not the same to work with as hair which is not fine, so I dug in to try to point out the obvious. ©Science-y Hair Blog 2013 String cheese separates into sections - a visual aid for hair diameter. Fine hair has a smaller diameter than average (somewhere between less than 50-70 microns in diameter, depending on the source you consult – I feel it’s closer to the lower end). This doesn’t tell us much unless you’re accustomed to measuring things in microns (micrometer...