Infection controll
what is round shaped bacteria
Cocci
What is the scientific study of hair and its diseases and care
Trichology
What bond is effected by change of pH
Salt bond
What are the types of Hydroxide Relaxers?
Metal Hydroxide relaxers
Lye Based relaxers
No Lye Relaxers
What is a fibrous protein found in hair and skin
Keratin
What is the difference between cleaning and staralizing
Sterilizing is completely destroying microbes, and cleaning is scrubbing with soap and water to remove debris.
What are the oil glands in the skin that are connected to the hair follicles
Sebaceous glands
What is wave pattern
refers to the shape of the hair strand
Why do permanent waves need to be neutralized?
Thio Neutralization stops the action of the waving solution and rebuilds the hair into its new curly form.
What's the oil attracting head
Lipophilic
What are the 4 types of microorganisms?
Bacteria, viruses, fungi, and parasites.
COHNS stands for
carbon, oxygen,hydrogen,nitrogen,sulfur
What are the two types of melanin
Pheomelanin, Eumelanin
What's the difference between an alkaline wave and a true acid wave?
Alkaline waves have a PH between 9.0 and 9.6.
True acid waves have a PH between 4.5 and 7
True acid waves process more slowly than alkaline waves, and do not usually produce as firm a curl as alkaline waves.
What is the technical term for grey hair
Canities
What does EPA stand for
Environmental protection agency
Proteins are made of long chains of...
Amino acids
What chemical bond must be broken in order to get a perm or relaxer service?
Disulfide
What is the pH of a neutral solution
7
How many phases are in the hair hair cycle
3
What is the difference between pathogenic and nonpathogenic bacteria
Pathogenic-disease cause
Nonpathogenic-Harmless
Cuticle,cortex,medulla
What is a long chain of amino acids Linked by peptide bonds
polypeptide chains
What is a two step process whereby the hair undergoes a physical change caused by wrapping the hair on perm rods
Permanent waving
What are the percentages of COHNS
c-51
o-21
h-6
n-17
s-5