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Chemistry
Permanent Waving Fundamentals
Structure of Hair
Chemical Straightening
Composition of Hair
100
A substance that has mass and occupies space.
What is MATTER
100
Used to determine the required processing time and ensures the desired curl has been achieved.
What is PROCESSING STRAND TEST
100
Name the three layers of the hair
What are CUTICLE, CORTEX, MEDULLA
100
Oily substance used as a barrier to protect the skin and scalp
What is BASE CREAM
100
Strong, fibrous protein
What is KERATIN
200
The measure of the acidity or alkalinity of a solution.
What is pH (POTENTIAL HYDROGEN)
200
Main ingredient in a neutralizer, strong oxidizing agent.
What is HYDROGEN PEROXIDE
200
Tough, outer protective covering made up of 7-12 layers of overlapping cells
What is CUTICLE
200
Performed during guest consultation to determine how the hair will respond to the chemical application
What is PRELIMINARY STRAND TEST
200
The ability for hair to stretch and return to its natural state is...
What is ELASTICITY
300
When a substance is able to be mixed it is....?
What is MISCIBLE
300
Breaking of the disulfide bond is called....
What is REDUCTION
300
This layer is responsible for elasticity and also contains melanin
What is CORTEX
300
The thickness or fullness of a liquid
What is VISCOSITY
300
Weak, physical side bonds that are easily broken by heat or water
What is HYDROGEN BONDS
400
Consists of two or more types of matter that are blended together
What is PHYSICAL MIXTURES
400
Chemical solution that stops the waving process and rebuilds bonds into their new form
What is NEUTRALIZER
400
Responsible for approximately 90% of the hair's weight
What is CORTEX
400
This type of relaxer has a high alkaline content
What is HYDROXIDE RELAXERS
400
Strong chemical side bonds that can only be broken by chemical solutions
What is DISULFIDE BONDS
500
What is made up of neutrons, protons and electrons?
What is ATOMS
500
Colorless liquid that aids in opening the cuticle layer of the hair
What is AMMONIA
500
This layer is sometimes missing in the hair and has no true effect on the hair
What is MEDULLA
500
This type of relaxer contains ammonia
What is THIOGLYCOLATE RELAXERS
500
The hair's ability to retain moisture
What is POROSITY