What is the pH range of lithium and potassium hydroxide relaxers?

• 9.0–11.0

• 6.5–8.5

• 10.5–12.0

• 7.0–9.0

Lithium hydroxide, potassium hydroxide, and guanidine hydroxide relaxers are sold as what?

• Lye relaxers

• “No mix–no lye” relaxers

• Neutralizing relaxers

• Low-pH relaxers

What is the pH range of ammonium thioglycolate relaxers?

• 8.0–9.0

• 9.6–10.0

• 10.5–11.5

• 12.0–14.0

Which relaxer type requires mixing before application?

• Sodium hydroxide relaxer

• Lithium hydroxide relaxer

• Guanidine hydroxide relaxer

• No-base relaxer

What type of shampoo must be used after a relaxer service?

• Clarifying shampoo

• Neutralizing shampoo

• Moisturizing shampoo

• Protein-based shampoo

What is the pH of sodium hydroxide relaxers?

• 9.0–10.0

• 12.5–14.0

• 11.0–12.0

• 6.5–8.5

What are ammonium sulfite/ammonium bisulfite relaxers marketed as?

• Low-pH relaxers or no-lye relaxers

• Lye relaxers

• Thio relaxers

• Strong relaxers

What is the primary chemical used in most chemical hair relaxers?

• Sodium hydroxide

• Ammonium thioglycolate

• Calcium hydroxide

• Potassium hydroxide

Which of the following is a common side effect of using chemical hair relaxers?

• Hair growth

• Hair breakage

• Increased hair volume

• Hair thickening

What is the role of a neutralizing shampoo in the hair relaxing process?

• To moisturize the hair

• To stop the chemical reaction

• To add shine to the hair

• To strengthen the hair