The Science Behind Shampoo

Shampoo is primarily used to clean hair and scalp by removing oils, dirt, and contaminants. Originally, it referred to a head massage practice in India, later evolving into the hair cleaning product we know today. Shampoo works as a surfactant, helping to remove sebum and dirt from hair. There are various types of shampoos for different needs, such as anti-dandruff and baby shampoos. However, excessive use can strip natural oils, potentially leading to hair damage or loss.

Where did the practice that led to the creation of shampoo originate?

• Southern India

• Western India

• Northern India

• Eastern India

What role does sebum play in hair health?

• It colors the hair.

• It acts as a protective layer.

• It makes hair grow faster.

• It causes hair to fall out.

How does shampoo help in cleaning hair?

• By adding more sebum to the hair.

• By acting as a surfactant to remove sebum.

• By making hair follicles produce less oil.

• By changing the color of the hair.

What is a potential consequence of overusing shampoo?

• Darker hair color

• Hair loss

• Increased hair growth

• Stronger hair

Which type of shampoo is specifically designed for infants?

• Clarifying shampoo

• Baby shampoo

• Volumizing shampoo

• Anti-dandruff shampoo