Hair Analysis

Card Set Information

Author:
celestefortier
ID:
14362
Filename:
Hair Analysis
Updated:
2010-04-13 20:07:16
Tags:
Texture Porosity Elasticity and density
Folders:

Description:
Four most important Texture, Porosity, Elasticity and density
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  1. Texture
    Course, Medium & Fine
  2. Course Hair Texture
    Largest in diameter. Stronger... Think rope... Requires more processing
  3. Medium
    The most common - The standard to which all other hair is compared. Does not pose any special problems
  4. Fine
    Smallest diameter - most fragile - easier to process. more susceptible to damage from chemical service that course or medium.
  5. Can Texture vary from strand to strand
    Yes, it is not uncommon for hair from different parts of the head to have a different texture.
  6. Porosity
    • The degree of porosity is the directly related to the condition of the hair. Healthy hair has a compact cuticle layer and naturally resistant to penetration = High Porosity
    • Overly processed hair = overly porous hair and allows moister to penetrate vs repelling off... Takes longer to dry etc...
  7. Can hair texture help determine porosity?
    • Yes, Course Hair normally has low porosity. Always test four parts of the head for porosity:
    • Hairline, temple, crown and nape.
  8. Elasticity
    Ability to stretch and return. Dry hair stretches 20% of the lenght. Hair with low elasticity is unable to hold curl from wet or thermal drying or permanent wave. Lower PH process required.
  9. Density
    Is the number of hair per sq. inch. How many hairs on the head, Low, Med, High. Average is 2200 per sq. in with a total average of 100,000. Color helps determine density
  10. Density per natural hair color
    Blond Hair = 140K, Brown 110K, Black = 108K and Red = 80K

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