Hair Care Products

Hair usually carries a

• positive charge

• negative charge

• neutral charge

• none of the above

A is known as

• hair shaft

• medulla

• cortex

• cuticle

A type of melanin found in the hair, which provides dark brown and black colour to the hair.

• Neuromelanin

• Pheomelanin

• Eumelanin

• Insect-melanin

Bonds found in hair fibers are generally classified as strong bond or weak bond.

Example(s) of weak bond(s) include

• hydrogen bond

• disulfide bond

• van der Waals forces

• ionic bond

On the scalp, catagen phase usually lasts for

• 2 - 3 days

• 2 - 3 weeks

• 2 - 3 months

• 2 - 3 years

Alkyl suphates are

• Non-ionic surfactants

• Amphoteric surfactants

• Cationic surfactants

• Anionic surfactants

Xanthan gum is used as ____ in shampoo's formulation.

• foaming agent

• thickener

• pH stabiliser

• opacifier

Amphoteric surfactants can be used in combination with anionic surfactants mainly to ____________.

• increase the critial micelle concentration of the latter

• act as foam booster

• reduce skin irritation

• provide volume to hair

Which of the following chemicals is amphoteric surfactant?

• CH₃(CH₂)₁₀CH₂(OCH₂CH₂)nOSO₃Na

• C₄₂H₈₀NO₈P

• C₁₂H₂₅CON(CH₃)₂COOH

• C₁₉H₄₂BrN

Which of the following surfactants has poor foaming properties?

• Anionic surfactant

• Cationic surfactant

• Amphoteric surfactant

• Non-ionic surfactant