Chemical texture services

______ give you the ability to permanently change the hair’s natural wave and curl pattern, thereby offering clients a variety of styling options that would not otherwise be possible.

• Chemical hair softening

• Chemical texture services

• Natural hair services

• Alternative texture services

Without a thorough understanding of _____, cosmetologists could damage hair, cause hair loss, and harm their clients and themselves.

• Chemistry

• Immunology

• Color theory

• Branding

What tough exterior layer of the hair has the purpose of surrounding the inner layers and protecting the hair from damage?

• Hair shaft

• Cuticle

• Cortex

• Medulla

Which layer of the hair is located directly beneath the cuticle layer and is responsible for the incredible strength and elasticity of human hair?

• Hair shaft

• Cuticle

• Cortex

• Medulla

Which layer of hair Is the innermost layer of the hair, and most often called the pith or core of the hair?

• Hair shaft

• Cuticle

• Cortex

• Medulla

The term pH is an abbreviation used for potential _____ and the symbol pH represents the quality of _____ ions in solution.

• Hydrogen; hydrogen

• Hydrogen; oxygen

• Oxygen ; oxygen

• Oxygen; nitrogen

The _______ measures the acidity and alkalinity by measuring the quantity of hydrogen ions it contains.

• Oxygen content

• Ph scale

• Salinity

• Radioactivity level

The range of numbers used in the pH scale is ______

• 0 to 5

• 0 to 7

• 0 to 10

• 0 to 14

chemical hair texturizes temporarily raise the pH of the hair to an alkaline state in order to ________

• Expand and harden the a shaft

• Harden and close the shaft

• Swell and set the shaft

• Soften and swell the shaft

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

• Slightly alkaline

• Mildly acidic

• Strongly acidic

• Highly alkaline