hair porosity
I know this has been explained before but I thought I'd explain it in detail since it seems some people are confused about it. First of all, I see some people saying their hair is unhealthy because it has low porosity. That is incorrect. Hair that has low and normal porosity are healthy. Hair that is high in porosity is unhealthy. another thing that I find girls teaching, which doesn't hold truth, is that low porosity hair and protein overload go hand in hand. this is not exactly true, they are two different things. the proof: hair can have protein overload and a high porosity at the same time. just doing protein treatments can help smooth the cuticle, but it won't bring high porosity hair to low porosity hair by itself. you have to look for specific kinds of proteins. I had this confused before because of what a girl that seemed more educated than me said. but she was apparentlly misinformed.
- low porosity - hair that isn't very porous has smooth cuticles that water doesn't enter in easily. this kind of hair is usually shiny, but it is resistant to chemical treatments like dye and relaxers. does not need cones or much protein either, you can get protein overload easily.
- normal porosity - this kind of hair can be thought of as being balanced. it can absorb a fraction of water, but is not overly porous. it can take chemical treatments okay, but you should keep it mind that over time the hair will become more porous by doing so.
- high porosity - think of chemically processed hair that isn't being properly taken care of. this hair is damaged and has lots of holes in the hair shaft. these holes are like a sponge and absorb water easily, but this does NOT mean it's better for moisturizing. just as quick as the moisture comes the moisture goes. this type of hair does take in chemicals better, but it's not suggested because you'll just end up with even more damaged hair.