Hair Color Formulas

What is the primary pigment responsible for natural hair color in humans?

• Melanin

• Carotene

• Chlorophyll

• Hemoglobin

Tags

NGSS.HS-LS3-2

Which of the following is a common chemical used in hair dye formulas to lighten hair color?

• Ammonia

• Sodium chloride

• Baking soda

• Vinegar

What is the role of hydrogen peroxide in hair coloring?

• Acts as a reducing agent

• Acts as an oxidizing agent

• Acts as a neutralizing agent

• Acts as a stabilizing agent

Which type of bond is primarily broken during the hair bleaching process?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Disulfide bonds

What is the pH range of most permanent hair color formulas?

• 2-3

• 4-5

• 9-10

• 11-12

Which of the following is a natural method to enhance hair color using a plant-based formula?

• Henna

• Bleach

• Ammonia

• Peroxide

What is the main function of ammonia in hair dye formulas?

• To add fragrance

• To open the hair cuticle

• To condition the hair

• To act as a preservative

Which element is commonly used in hair color formulas to achieve a red hue?

• Copper

• Iron

• Zinc

• Magnesium

What is the scientific term for the study of hair and its diseases?

• Trichology

• Dermatology

• Oncology

• Neurology

Which of the following compounds is used to neutralize yellow tones in blonde hair?

• Purple shampoo

• Green tea extract

• Baking soda

• Olive oil