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5 Written questions

5 Matching questions

  1. What is an Occlusive?
  2. What is a Whitehead?
  3. How was retinol discovered?
  4. What is an Emollient (from L. mollire "to soften", related to the word mollify) ?
  5. Why is inflammation so damaging to the skin?
  1. a Identical to a Blackhead, with the exception that a small amount of skin has grown over the follicle, resulting in the bump appearing white. []
  2. b Emollients, also commonly referred to as Moisturizers, are products that help to soften skin or to treat skin that has become dry. Most emollients are forms of oil or grease, such as mineral oil, squalene, and lanolin. They work by increasing the ability of skin to hold water, lubrication of the skin, and providing skin with a layer of oil to prevent water loss. []
  3. c ...
  4. d Materials such as oils and waxes which cannot be penetrated by water. Occlusives are spread onto skin to form a film which shields it to slow and prevent moisture from evaporating. []
  5. e It was discovered in 1978 by scientists who were researching treatments for Acne.

5 Multiple choice questions

  1. A substance added to another substance to keep it moist.
  2. Between 30 to 50 percent of its pace in youth, meaning that older skin renews itself much more slowly, forming a rough surface of cells, rather than a smooth surface. [Skin Type Solution, 18]
  3. The Epidermis [Gk. "epi" = over, "dermis" = skin] is the top layer of skin. When you look at someone's skin, you are looking at the very top layer, made of up of cells which reflect light. When the top layer is smooth, it reflects light evenly so that skin looks more uniform and radiant than when the surface is rougher. [Skin Type Solution, 18]
  4. A silicone oil which forms a slick, lubricating coat on a surface. Can be used in hair products to create a surface with less friction for easier combing, or as a protectant, emollient, and occlusive for skin care products.
  5. The first is to inhibit the enzyme tyrosinase (enzyme responsible for the formation of melanin), preventing the formation of melanin. The second is to stop the transfer of color into the skin cells. [Skin Type Solution]

5 True/False questions

  1. What is a Phtlate?...


  2. What are milia?Ceramides (Cera = wax) are lipids which form part of the skin barrier.


  3. What is the Stratum Corneum [from L. "stratum" = layer, "cornus" = horn] ?The horny outer layer of the Epidermis, consisting of several layers of flat, keratinized (replete with the protein keratin thus becoming horn-like in texture), nonnucleated, dead or peeling cells. []


  4. What are some Cell-Communicating Ingredients?retinol, retinaldehyde, retinoic acid, epigallocatechin-3-gallate, eicosapentaenoic acid, niacinamide, lecithin, linolenic acid, linolenic acid, phospholipids, carnitine, carnosine, adenosine triphosphate, adenosine cyclic phosphate, palmitoyl oligopeptide, palmitoyl tripeptide-3 (and most other peptides), and pyrus malus (apple) fruit extract []


  5. What are melanocytes?Ceramides (Cera = wax) are lipids which form part of the skin barrier.


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