Cosmetology Chemical Texture Services

Exothermic waves create a chemical reaction that heats the waving solution and speeds up:

Chemical side bonds formed when two sulfur-type chains are joined together are:

The most common neutralizer is hydrogen peroxide.(T/F)
True False

Relaxers are often marketed and sold as no mix–no lye relaxers are:

Hydroxide relaxers that do not require the application of a protective base are:

The application for chemical relaxers should be started in the most resistant area, usually he:

The wrapping technique that provides the most control over hair ends is the:

Base sections are offset from each other row by row, to prevent noticeable splits, in which wrapping pattern?

The main active ingredient in true acid and acid-balanced waving lotions is:

The most common reducing agents used are:

The strength of any permanent wave is based on the concentration of its reducing agent. (T/F)
True False

The active ingredient or reducing agent in alkaline permanent waves is:

All perm wraps begin by sectioning the hair into:

The process of rearranging the basic structure of curly hair into a straighter or smoother form is:

Hair that has too many disulfide bonds broken and will not hold a firm curl is considered:

In permanent waving, the reduction reaction is due to the addition of:

Hydroxide relaxers remove a sulfur atom from a disulfide bond, converting it into a(n):

Chemical hair texturizers temporarily raise the pH of the hair in order to:

Hydrogen bonds are easily broken by water or heat and are re-formed when the hair is:

The process that stops the action of permanent wave solution and rebuilds the hair into its new form is:

Japanese thermal straightening combines use of a thio relaxer with flat ironing. (T/F)
True False

The single flat wrap uses one end paper folded in half over the hair ends like an envelope.(T/F)
True False

Keratin straightening treatments work by breaking side bonds.(T/F)
True False

Relaxers that contain two components and must be mixed immediately prior to use are:

Conditioner with an acidic pH that restores the hair’s natural pH after a hydroxide relaxer is:

The curvature permanent wrap uses zigzag partings to divide base areas.(T/F)
True False

Ammonia-free waves use an ingredient other than ATG, such as cysteamine or mercaptamine.(T/F)
True False

Most alkaline permanent waves have a pH between:

The active ingredient in all hydroxide relaxers is the:

Salt bonds can be broken by water, whereas disulfide bonds are broken by changes in pH.(T/F)
True False

The cortex layer of the hair structure is responsible for the hair’s length and texture.(T/F)
True False

Chemical services should not be performed if the scalp analysis shows any signs of:

In the croquignole method of wrapping, the hair is wound from:

Hair that has been treated with a hydroxide relaxer is unfit for permanent waving and will not hold a curl.(T/F)
True False

Once in the cortex, the waving solution breaks the disulfide bonds through a chemical reaction called:

Most acid waves used in salons have a pH value between:

The two methods of wrapping the hair around a perm rod are:

The angle at which a permanent wave rod is positioned on the head is referred to as:

Rods that are equal in diameter along their entire length or curling area are:

Sodium hydroxide relaxers are commonly called:

On-base placement minimizes stress and tension on the hair.(T/F)
True False

In permanent waving, panels of hair are divided into smaller subsections called:

The term pH is an abbreviation used for potential hydrogen. (T/F)
True False

Hair that is treated with hydroxide relaxers must not be treated with:

The process of chemically altering the natural wave pattern of hair is:

Alkaline waves are also known as cold waves.(T/F)
True False

Relaxers that contain only one component and are used without mixing are:

Most common type of perm rod

Also known as the circle rod

Tough exterior layer of the hair

Compound made up of carbon, oxygen, hydrogen nitrogen, and sulfur

Long, coiled polypeptide chains

Permanent waves that have a 7.0 or neutral pH

Hair is wrapped at an angle other than perpendicular to the length of the rod

Also known as a straight set wrap

Waves that are activated from an outside heat source are considered:

The difference in the strength of most chemical hair relaxers is determined by the concentration of:

During a relaxer strand test, hair that is pressed to the scalp and continues to curl is:

A combination of a thio relaxer and a thio permanent wrapped on large rods is a:

In permanent waving, the shape and type of curl are determined by the shape and type of rod and the:

In the restructuring process, coarse, resistant hair with a strong compact cuticle requires a chemical solution that is:

Caution should be used with on-base rod placement to avoid additional:

The range of numbers used in the pH scale is:

In permanent waving, the size of the rod determines the size of the curl.(T/F)
True False

All acid waves have three components consisting of the permanent waving lotion, neutralizer, and:

The double-rod wrap technique is also called the: