Porosity refers to your hair's ability to retain moisture. Hair that is highly porous has a raised cuticle that is both quick to absorb and lose moisture. Much highly porous hair is the result of overprocessing, and it is best to avoid chemical and heat processes on such hair in order to prevent futher damage. Instead, using protein treatments will help fill the gaps in the cuticle of porous hair.
What is porosity ? And how can it affect hair color
big particles=low porosity small particles=high porosity
Porosity tests are carried out to assess the condition of the cuticle layer of the hair.
Yes for example Clay has high porosity and low permeability
Hair has different types of porosity. Porosity is the amount of moisture that the hair is able to absorb. There are a lot of factors that affects the porosity of the hair such as hair colors, perms, relaxers and other things. The more the hair is expose to these factors affects the overall porosity of the hair. The Porosity are Resistant porosity, normal, or extreme. Extreme porosity will relate to damaged hair that are unable to take color very well or it will fade faster or often. That means that the cuticle is missing and the hair is badly damaged.
The cuticle, which is the outermost layer of the hair shaft.
poorly sorted = low porosity well sorted = high porosity
Chemical processes such as bleaching and coloring your hair make it overly porous. As a result of the high porosity, your hair is unable to hold moisture and also loses its natural curl pattern.
float
No , it is least porous .
take small section of hair and push your fingers up the hair shaft if you feel bumps your hair is poroise
a porosity test is done while doing consultation with the client to show how much moisture the hair can absorb.