Understanding Chemical Texture Services

Which type of chemical bond is primarily responsible for holding together the polypeptide chains in hair?

• Hydrogen bond

• Disulfide bond

• Ionic bond

• Metallic bond

What is the main purpose of a neutralizer in a chemical texture service?

• To break peptide bonds

• To reform disulfide bonds

• To increase hair porosity

• To add color to hair

Which of the following is a type of chemical texture service that straightens curly hair?

• Permanent waving

• Chemical relaxing

• Hair coloring

• Deep conditioning

What is the ideal pH range for most permanent waving solutions?

• 2.0–3.0

• 4.5–5.5

• 8.0–9.5

• 11.0–12.5

Which layer of the hair is most affected by chemical texture services?

• Cuticle

• Cortex

• Medulla

• Follicle

What is the primary safety equipment required when applying chemical texture products?

• Safety goggles

• Gloves

• Apron

• Face mask

Which chemical is commonly used as a reducing agent in permanent waving solutions?

• Ammonium thioglycolate

• Hydrogen peroxide

• Sodium chloride

• Acetic acid

Which of the following best describes the effect of an alkaline pH on hair during a chemical texture service?

• Closes the cuticle

• Swells and softens the hair

• Hardens the hair shaft

• Decreases porosity

Which type of chemical texture service is designed to add curl to straight hair?

• Chemical relaxing

• Permanent waving

• Hair bleaching

• Deep conditioning

What is the main function of the cuticle layer in hair structure?

• Provides strength and elasticity

• Protects the inner layers

• Produces melanin

• Anchors hair to the scalp