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26 Cards in this Set
- Front
- Back
Acid-balanced waves |
Permanent waves that have a 7.0 or neutral pH that processes at room temperature, processes more quickly and produce firmer curls than true acid waves. |
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Alkaline waves |
Aka cold waves; they have a pH between 9.0 and 9.6, use ammonium thioglycolate (ATG) as the reducing agent, processes at room temperature. |
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Base relaxers |
Relaxers that require the application of protective base cream to the entire scalp prior to the application of the relaxer. |
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Concave rods |
Perm rods that have a smaller diameter in the center that increases to a larger diameter on the ends. |
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Croquignole perm wrap |
Perm where the hair strands are wrapped from the ends to the scalp in overlapping concentric layers. |
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Disulfide bonds |
Strong chemical bonds formed when the sulfur atoms on two adjacent protein chains are joined together. |
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Endothermic waves |
Perm activates by an outside heat source. |
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Exothermic waves |
Create an exothermic chemical reaction that heats up the waving solution and speeds up the process. |
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Glyceryl monothioglycolate (GMTG) |
Main active ingredient in true acid and Acid-balanced waving lotions. |
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Hydroxide relaxers |
Very strong alkalis with a pH over 13. |
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Lanthionization |
Process by which hydroxide relaxers permanently straighten hair; they remove a sulfur atom from a disulfide bond and convert it into a lanthionine bond. |
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Low pH waves |
Perms that use sulfates, sulfites, and bisulfites as an alternative to ATG. |
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Peptide bond |
Aka end bonds; chemical bonds that join amino acids together, end to end in long chains to form polypeptide bonds. |
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Soft curl perm |
A thio based chemical service that reformats curly and wavy hair into looser and larger curls and waves. |
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True acid waves |
Have a pH between 4.5 and 7.0 and require heat to process. |
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Viscosity |
The measurement of the thickness or thinness of a liquid that affects how the fluid flows. |
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Ammonium thioglycolate |
The main active ingredient or reducing agent in alkaline perms? |
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Glycerol monothioglycolate |
The main ingredient in Acid-balanced waving lotions? |
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Expand the hair |
The action of waving lotion is to? |
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Little or no elasticity |
If hair breaks under slight strain it has? |
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Amino acids |
Keratin proteins are made of long chains of _________ linked together end-to-end like beads. |
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Acid-balanced |
Waves that process more quickly and produce firmer curls than true acid waves are considered to be? |
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Disulfide bonds |
Bonds that are formed when the sulfur atoms in two adjacent polypeptide chains are joined together. |
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Waving lotion |
The chemical action of ________ breaks the disulfide bonds and softens the hair. |
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Hydrogen, salt, and disulfide |
Name the 3 types of side bonds. |
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4.5 to 5.5 |
What is the natural pH of hair? |