COSME LAB MIDTERMS

• Lip and Cheek Tints

  • Gel-like or water based so it is easy to blend
  • Provide shear and lightweight coverage
• Lipsticks vs Lip Tints


  Lipsticks add a layer on top of the lips, stains are absorbed into the outer layers of the skin for a sheer pop of low-maintenance color
• Lip Tint


  Typically has a liquid or gel base, sometimes even a mousse texture. Within this base are pigments that cling to the lips long after the watery base has evaporated
• Water


  • Used as a hydrating agent that helps to moisturize and soothe the lips
  • Can help prevent dryness and cracking caused by environmental exposure
  • Provides a lightweight, natural-looking finish that is comfortable to wear
  • Easier to apply evenly and can blend more seamlessly with the natural texture of the lips
• Viscosity Builder


  • Often a combination of waxes (beeswax or carnauba wax) and/or thickeners (polymers, alginates, starch, gelatin, cellulose, collagen, hyaluronic acid)
  • Carbomer, a synthetic polymer or stabilizer and emulsifier, creates a gel-like structure
• Blending - Moisturizing Agent


  • Combination of oils, waxes, and emollients that help to hydrate and soften the lips while providing a smooth, even application of color
  • Help to hydrate the skin and improve its overall moisture balance (e.g. beeswax, jojoba oil, shea butter, castor oil)
• Active - Betaine


  • A type of humectant that helps to retain moisture and keep the skin hydrated
  • Beneficial in lip and cheek tints as it can help prevent the skin from drying out and ensure the product applies smoothly
  • Very good as an anti-irritant, suitable for sensitive skin
• Preservatives


  • Used to prevent microbial growth and increase the shelf life of the product (e.g. parabens, phenoxyethanol, benzyl alcohol)
• Flavor and Scent - Vanilla

  • Flavor is typically added to create a pleasant taste when the product is applied to the lips (e.g. fruity, minty, sweet)
  • Scent is added to create a pleasant aroma that can be experienced by the user and those around them (e.g. floral, fruity, herbal)
• Pigment - KPOP Red/Tint


  • Water-soluble dyes such as D&C Red 33, D&C Red 6, D&C Orange 4, D&C Yellow 5, and FD&C Blue 1
• Vitamin and Antioxidant


  • Vitamins (e.g. vitamin E, vitamin C) provide moisturizing and healing properties, and help protect the lips from damage
  • Antioxidants (e.g. green tea extract, grape seed extract, pomegranate extract) help protect the lips from environmental damage and provide anti-inflammatory properties
• Microbiological Testing


  Evaluates the total microbial count and checks for specific pathogens in the product samples
• Physical and Chemical Testing

  1. pH level testing

  2. Viscosity testing

  3. Color and pigmentation evaluation
• Safety and Efficacy Testing

  1. Skin irritation testing

  2. Stability testing

  3. Performance evaluation
• Hand Sanitizers


  • Used to kill germs and bacteria on the hands
  • Typically made with 60-95% alcohol as the main germ-killing agent
  • Gel-like consistency to help the product stay on the hands
• Water in Hand Sanitizers

  • Helps dissolve and dilute the alcohol, reduce skin irritation, and improve spreadability and coverage
• Gelling Agent/Pseudo-Emulsifier


  • Helps thicken the product and give it a gel-like consistency, such as carbomer
• Ethanol


  • The type of alcohol commonly used as the active ingredient in hand sanitizers due to its ability to kill or inactivate microbes
• Stabilizer/Humectant


  • Helps maintain the stability and consistency of the product, and improve its feel on the skin (e.g. glycerin)
• Fragrance - Fresh


  • Used to mask the strong odor of the alcohol or other active ingredients
• Secondary Moisturizer


  • Helps prevent dryness and irritation, and keep the skin hydrated (e.g. aloe vera, vitamin E, hyaluronic acid, lavender oil, witch hazel, green tea extract)
• Perfumery traces its roots to ancient civilizations such as Mesopotamia, Egypt, India, and China, where they discovered the art of extracting aromatic essences from various natural sources
• The Egyptians were known for their advanced perfumery techniques, using fragrant oils and resins in religious rituals, as offerings to their gods, and for embalming purposes
• Ancient Indian texts like the Vedas mentioned the use of fragrant oils and incense for medicinal and spiritual purposes
• The Chinese developed techniques for extracting aromatic substances from flowers and plants and used them in religious ceremonies and daily life
• Fragrances played a vital role in religious practices across various civilizations, and many ancient cultures believed in the therapeutic properties of fragrances
• Perfumes became intertwined with cultural traditions and social customs, used to adorn the body, beautify the hair, and signify status and wealth
• Perfumery experienced a significant transformation during the Renaissance (14th to 17th centuries) in Europe, where fragrances were created by combining essential oils derived from flowers, herbs, spices, and animal sources
• Vedas


  Archaic Sanskrit texts that mentioned the use of fragrant oils and incense for medicinal and spiritual purposes
• Chinese


  Developed techniques for extracting aromatic substances from flowers and plants and used them in religious ceremonies and daily life
• Fragrances played a vital role in religious practices across various civilizations
• Many ancient cultures believed in the therapeutic properties of fragrances (to present to their Gods)
• Aromatics were used in medicinal preparations and remedies to treat ailments and enhance well-being
• Perfumes


  Became intertwined with cultural traditions and social customs
• Perfumes were used to


  • Adorn the body
  • Beautify the hair
  • Signify status and wealth
• Perfumes reflect that you are CLEAN and a symbol of NOBILITY
• Perfumery


  Experienced a significant transformation during the Renaissance (14th to 17th centuries) in Europe
• Fragrances


  Were created by combining essential oils derived from flowers, herbs, spices, and animal sources
• Alchemy


  The art and science in creating unique transformative fragrances
• Distillation


  The process used to extract essential oils as well as aromatic compounds such as botanical extracts. Most common methods