Creams: Types, Components, and Uses
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Questions and Answers

What is the primary difference between oil-in-water (O/W) and water-in-oil (W/O) creams?

  • O/W creams are stiffer and more emollient than W/O creams.
  • O/W creams are more hydrophobic and release drugs more readily compared to W/O creams.
  • O/W creams are more difficult to handle while W/O creams are more cosmetically acceptable.
  • O/W creams have a continuous oil phase while W/O creams have a continuous water phase. (correct)

    • Which of the following is NOT a typical characteristic of vanishing creams?

  • Emollient and creamy texture
  • White or translucent appearance
  • Water-in-oil (W/O) type emulsion (correct)
  • Stiff consistency

    • Which of the following is a common natural emulsifying agent used in O/W creams?

  • Polysorbate
  • Sodium lauryl sulfate (SLS)
  • Carboxymethylcellulose (CMC)
  • Olive oil (correct)

    • Why are hydrophobic drugs more readily released from W/O creams compared to O/W creams?

    <p>The continuous oil phase in W/O creams provides a more favorable environment for hydrophobic drugs.</p> Signup and view all the answers

    Which of the following is NOT a typical component found in the composition of a vanishing cream?

    <p>Antimicrobial agents</p> Signup and view all the answers

    What is the primary advantage of O/W creams over W/O creams?

    <p>O/W creams are more comfortable and cosmetically acceptable.</p> Signup and view all the answers

    What is the purpose of adding beeswax, wool alcohols, and wool fat to skin care preparations?

    <p>To form an oily barrier to reduce water loss from the stratum corneum</p> Signup and view all the answers

    Which compound saponifies fatty acids in beeswax, allowing for a more stable cream?

    <p>Borax</p> Signup and view all the answers

    What is the function of liquid paraffin in skin care preparations?

    <p>Prevent water loss by forming an occlusive film</p> Signup and view all the answers

    Which component is NOT typically found in the formulation of skin care products?

    <p>Citrate buffer</p> Signup and view all the answers

    In the classification of creams based on function, which type may include products like all-purpose cream, baby cream, and hand cream?

    <p>Cosmetic creams</p> Signup and view all the answers

    What is the primary purpose of Hydrocortisone cream in skin care?

    <p>To provide relief from inflammatory conditions like dermatitis</p> Signup and view all the answers

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