| A | B |
|---|
| the chemical texture service that loosens overly curly hair or changes tightly curly or coiled hair into loose curls or waves is | curl re forming |
| the layer of the hair that provides the straight and elasticity of human hair is the | cortex |
| the natural ph of the hair is between | 4.5 and 5.5 |
| in permanent waving, the size of the curl is determined by the | size of the rod |
| the technique of wrapping hair at an angle of 90 degrees or perpendicular to its base section is | haft off- base placement |
| the two basic types of wrapping the hair around a perm rod are the spiral and | croquignole perm technique |
| a reduction involves either the addition of hydrogen or the removal of | oxygen |
| most cold waves have a ph between | 9.0 and 9.6 |
| the three separate components of acid waves are permanent waving solution, activator, and | neturalizer |
| an endothermic wave is activated by | an outside heat source |
| permanent solution should be rinsed from the hair for at least | 5 mins |
| the process of rearranging the structure of curly hair into a straighter or smoother form is | chemical hair relaxing |
| thio relaxer usually have a ph above | 10 |
| hydroxide ion left in the hair after a relaxer can be neutralized using a | acid- balanced shampoo |
| which type relaxer contains only one component and id used exactly as it is packaged with no mix necessary | metal hydroxide relaxer |
| lithium hydroxide and potassium hydroxide relaxer are often advertised and sold as | no mix- no lye relaxer |
| which tyoe of bonf are relatively weak physical side bond that are the result of an attraction between negative and positive electical charges | salt bond |
| which type of rod is also known a | loop rods |
| for an base placement , the hair is wrapped at beyond perpendicular to its base section and the rod is positioned on its base | 45 degrees |
| which of these permanent waves process at room temperature | acid balance waves |
| chemical solution the ph of the | raise |
| when should you perform an elasticity test | before perming the hair |
| porous hair | could be damaged by a highly alkaline permanent |
| GMTG, the primary reducing agent in the most aicd waves | a low ph |
| true acid waves have a ph between | 4.5. and 7.0 |
| ammonia free wave | have very little order |
| in permanent waving, most of the processing take place within the first | 5 to 10 mins |
| one safety precaution of permanent waving is | examine the scalp before the perm service |
| with extremely curl hair, the twists are the | thinnest and weakest |
| relaxers are and can literally melt or dissolve hair if used incorrectly | extremely alkaline |
| if the client hair has been treated with hydroxide relaxer it means the hair | will not hold a curl when applying a thio relaxer or thio permanent |
