Cosmetics Overview and Categories

Which of the following ingredients would be MOST effective in a shampoo designed to improve hair's shine and manageability?

A cosmetic manufacturer is formulating a new exfoliating body scrub. Which ingredient is suitable?

A chemist is tasked with increasing the thickness of the oil-soluble components in a new lotion formulation. Which of the following ingredients would be MOST suitable for this purpose?

A cosmetic formulator needs to create a pearlescent effect in a new shampoo product. Which of the following ingredients would be MOST appropriate to use as an opacifying agent?

Which of the following ingredients functions primarily as a humectant in skincare formulations?

Which of the following best describes the function of occlusives in skincare products?

Which ingredient would be MOST effective for holding a styled hair in place?

Based on the information provided, what is the historical significance of the clay cylinder found in ancient Babylon?

Which of the following skin conditioning agents primarily functions to impart softness to the skin?

If a cosmetic product claims to 'dissolve' other ingredients within the formulation, which type of substance is most likely responsible for this property?

How does the conjugation within a molecule affect its visible color, based on the examples provided?

In the context of dyes, what is the primary role of an auxochrome?

Which of the following best explains why acid dyes are effective on polyamides and proteins?

What is a key disadvantage of acid dyes, despite their cost-effectiveness and light fastness?

A dye molecule contains a chromophore with limited conjugation. If an auxochrome is added that introduces additional conjugated double bonds, what is the likely effect on the dye's color?

In the context of mosquito repellents, what is the primary active component of pyrethrum that provides its insecticidal properties?

Which dyeing method relies on a coupling reaction between naphthol and a diazo component to develop color?

Why are reactive dyes particularly effective for dyeing cellulosic fibers?

Considering their chemical properties, which type of dye would be MOST suitable for creating a tie-dye effect on cotton fabric?

Historically, how was pyrethrum utilized in military contexts?

What structural modification enhances the efficacy of direct dyes?

Which characteristic is a drawback of direct dyes despite their ease of application?

How does adding sodium chloride impact the direct dyeing process?

Which type of dye requires sodium hydrosulfite dissolved in sodium hydroxide to become soluble?

What is the primary purpose of using vat dyes and sulfur dyes on cellulosic substrates?

Which of these dyes is derived from plant sources?

What kind of fabrics are suitable for direct dyes?

Upon exposure to water, what is the effect of dyes with low fastness?

Which of the following statements accurately describes the role of builders in cleaning products?

What is the primary function of surfactants in a cleaning solution?

During saponification, what are the main products formed when plant oils and animal fats react with a liquid alkali?

Which type of surfactant is best suited for use in fabric softeners and fabric-softening laundry detergents?

If a cleaning product is designed to be effective in hard water and produce low suds, which type of surfactant would be most suitable?

Which of the following describes a key characteristic of amphoteric (zwitterionic) surfactants?

In the preparation of detergents, what role do petrochemicals and oleochemicals play?

Why are anionic surfactants popular choices for laundry and hand dishwashing detergents?

Hydrolysis of oils and fats using high-pressure steam primarily yields which of the following products?

Which type of cleaning product would most likely contain quaternary ammonium compounds?