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Chemical Services
Chemical Texture service
| Term | Definition |
|---|---|
| glyceryl monothioglycolate | main active ingredient in true acid and acid-balanced waving lotions |
| half-off-base placement | base control in which the hair is wrapped at an angle of 90 degrees or perpendicular to its base section and the rod is positioned half off its base |
| hydroxide neutralization | neutralizes (deactivates) the alkaline residues left in the hair |
| hydroxide relaxers | used to relax the hair |
| keratin-based smoothing treatment | also called Brazilian keratein treatments; semi permanent treatment that smooths curly and wavy hair textures and eliminates frizz |
| lanthioization | process by which hydroxide relaxers permanently straighten hair |
| loop rod | also known as circle rod; |
| low-pH waves | perms that uses sulfates, sulfites, and bisulfites as an alternative to ammonium thioglycolate |
| lye relaxers | used to break the disulfide bonds and loosen curls |
| metal hydroxide relaxers | ionic compounds formed by metal that is combined with oxygen and hydrogen |
| no-base relaxers | relaxers that do not require application of protective base cream |
| off-base placement | base control in which the hair is wrapped at 45 degrees blow base section's center so the rod is positioned completely off its base |
| on-base placement | base control in which the hair is wrapped at a 45 degree angle beyond perpendicular to its base section |
| panels | perm sections, size, shape and direction vary based on wrapping patterns |
| partial perms | permanent waves that curl only specific areas of the head |
| permanent waving | adds wave or curl to the hair |
| relaxer retouch | application for hair that has received a chemical relaxer service |
| single flat wrap | perm wrap that is similar to double flat wrap but uses only one end paper. placed over the top of the base panel of hair |
| sodium hydroxide relaxer | also known as lye relaxer or caustic soda; used to break the disulfide bonds and loosen curls |
| soft bended rods | known as flexible foam rods |
| soft curl permanent | also called chemical curl reformation service; this thio-based chemical process loosens very curly hair into larger soft curls or waves |
| spiral perms | hair is wrapped vertically until it fills the length of each rod like stripes on a candy cane |
| straight rods | perm rods that are equal in diameter along their entire length or curling area |
| thio-free waves | perm that uses an ingredient other than ATG as the primary reducing agent, such as cysteamine or mercaptamine |
| thio neutralization | relies on an oxidation process to stop the action of the relaxer solution an rebuild the hair into its new form |
| thio relaxers | use reduction and oxidation to break the disulfide bonds and then reform them to a more relaxed hair texture |
| true acid waves | have a pH between 4.5 and 7.0 and require heat process |
| virgin relaxer | application used for hair that has not had a previous chemical relaxer service |
| viscosity | measurements of a liquids thickness or thinness |