cosmetology

1. Waves- Permanent waves that have a 7.0 or neutral pH
3. curl permanent - a. combination of a thio relaxer, followed by a thio permanent wave that is wrapped. on large rods
6. solutions - pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).
7. bonds - link together these polypeptide chains.
8. solution -A solution of a soluble base with pH greater than 7
13. changes- occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.
14. (lye) relaxer - used to straighten tightly curled hair.
16. agent- A substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound.
17. bond- a functional group present in some proteins

2. THIOGLYCOLATE -a colorless crystalline salt NH4OOCH2SH used in setting cold waves
4. Acid - a colorless liquid with an unpleasant odor (like rotten eggs). It is used in making hair dressing solutions, pharmaceuticals and chemicals.
5. relaxers- require stylists to base the client's entire scalp with a protective cream prior to the chemical relaxer application.
9. reaction- a chemical reaction in which less energy is needed to break bonds in the reactants than is released when new bonds form in the products
10. Neutralization- Neutralization of a thio permanent or relaxer is an oxidation reaction that re- builds the disulfide bonds that were broken during processing
11. scale - quantitative measure of the acidity or basicity of aqueous or other liquid solutions
12. change- involves a change in physical properties
13. hair relaxing - the process of permanently rearranging the basic structure of overly curly hair into a straight form.
15. texture services- problem solvers for stylists and clients in that they change the texture of the hair and can allow a person to wear just about any conceivable hair texture.