KNOWING HOW COSMETICS WORK

IT IS IMPORTANT  TO UNDERSTAND HOW  COSMETIC  PRODUCTS PERFORM :

There  are  four ways in  which  most products perform on the skin.

1. Various  cosmetic  products form  an  occlusive  barrier  on  the  surface  of  the  skin  to prevent  moisture loss, allowing the skin to remain soft and supple due to its natural hydration.  Some  cosmetic  products perform  by adding protection  against  harmful  UV  rays  known  to prematurely  age the  skin. Other products remain  strictly  on  the  surface  of  the  skin  in  order to  soften  the  top layers  of dead skin cells and facilitate in their removal allowing for a more youthful appearance.

2. The  second  way  that  cosmetic  products perform  is to penetrate  the  top epidermal layer. These products  help to  facilitate  skin  hydration  by introducing hydrating ingredients  into  the  intercellular channels. When  products  penetrate  the  top epidermal layer they  often  have  ingredients  known  as liposomes.   These  are  time-release  capsules  from which  moisture  or special ingredients may  slowly  be released. Various products  penetrate  the  epidermal layer to assist with  deep exfoliation. These  products help soften  the  cohesive  bonds that  “glue”  the  corneum  cells together,  therefore  allowing the  dead surface skin cells to be removed more easily.

3. The  third way  that  products perform  is to penetrate  into the  Pilosebaceous Orifice  (hair follicle);  this assists in the reduction  of  bacteria  population.  This also reduces  cellular  hyperkeratinization  (also called hyperkeratosis), which is an overgrowth of the top layer of skin cells forming visible scales or flakes.

 4.  The  fourth  and final  way  that  products  perform  is by  penetrating  more  deeply  into the  epidermal tissue.  This  ultimately  helps  to improve  skin  hydration.  This product  performance  also helps to reduce oxidation  that  results in  free  radical formation  (certain  oxygen  molecules that  damage  DNA in the  skin cells) causing the skin to look dull and tired. Every cosmetic product requires vehicles, catalysts, additives and active ingredients.  Vehicles are  known  as one  or more  substances that  “carry”  the  active  ingredients  allowing for product performance. There  are  two common  forms of  vehicles used in  cosmetics.  The  first  type  is a  solvent. Commonly  used solvents include:  purified and distilled  water, or ethyl and isopropyl alcohol.  The  second type  of  vehicle  is  an  oil.  These  may  be  either animal, vegetable,  or mineral oils. Vehicles are  usually  the first items on the ingredient list making up the largest portion of the product formula.

Catalysts are  ingredients that  help bind the  vehicle  and  active  ingredients. Catalysts also improve  the action  of  the  active  ingredients.  There  are  four common  forms of  catalysts  used in  cosmetic  preparations. Humectants,  such  as glycol  and propylene  glycol, are  used to draw  moisture  from  the  air and hold it  close to the  surface  of  the  skin  giving  it  a  more  youthful appearance.  Thickeners,  such  as gelatins and gums, may  also be  incorporated as catalysts in  various products allowing  for the  active  ingredients to improve their action. Emulsifiers,  include  waxes and fatty  alcohols.  Stabilizers,  such  as  fatty  acids,  are  also  known as cosmetic catalysts.   Additives are  added to the  basic  ingredients and each  additive  has  a  specific  role  in  the  product.  These ingredients are  usually  found towards the  end of  the  ingredient  list  and are  usually  present  in  small concentrations.  They  can  also be  known  as inactive  ingredients. Inactive  ingredients aid by adding bulk, density,  feel, texture  and  penetration  ability  to a  product.  Typical additives are  preservatives, antioxidants, colourants/dyes and fragrance/perfumes.  Active  ingredients determine  the  function(s)  of  the  cosmetic  product, and their  action  or  aim,  which provide  visible  results to the  skin. Active  ingredients are  often  added to the  vehicle  in  a  concentration that  varies depending  on  the  ingredient  and the  purpose  of  the  product.  These  ingredients ideally  should be  listed between  the  first  two to five  items  in  a  product’s  ingredient  list. Active  ingredients can  have  a variety  of  different  properties  and purposes:  moisturizing, soothing, calming, antibacterial, toning, regenerating, exfoliation  or  astringent. Common  active  ingredients include  plant  and animal extracts, essential oils, vegetable oils, and animal oils and fats.

- Active  has a  direct  effect  on  the  skin.
- Inactive performs a function that helps the product, such as a preservative.

Other common chemical terms that you will notice on various product labels include:
- Acids  are  used to  neutralize  substances that  are  too alkaline;  they  also  have  an  exfoliating action.
- Alcohols  are  colourless liquids  or waxy  solids made  from fermented sugars.  Sometimes recognized by the suffix  –  “ol”,  such  as  ethanol,  isopropanol, etc.  These  ingredients  are  often  used in perfumes, lotions and  tonics,  and as a  strong antiseptic.
 -Amino Acids  are  molecular units  known  as  building blocks  from  which  protein  is formed.
-  Antioxidants,  also know  as preservatives, prevent  compounds from  oxidizing (for example,  rusting). - - They  are  commonly  used to describe  free  radical neutralizers frequently  used in  anti-aging  cosmetics. - Binders  are  ingredients  used to increase  the  consistency  of  a  product;  they  allow  the  product  to hold its  ingredients together,  preventing  separation.
 - Buffers  are  ingredients  that  resist  changes  in  the  pH balance  of  a  product,  or  they  help  to  neutralize the  pH of  a  product.
- Colloids  are  liquid mixtures made  up of  small particles of  insoluble  materials.  The  product  can  be shaken  to  blend, but  will have  a  tendency  to separate  again  on  standing.
- Colourants  are  substances  that  give a  product  its characteristic  colour.  They  may  be  synthetically  or naturally  created.
-Comedogenic  describes ingredients that  may  clog the  skin’s  pores.
- Dispersants  may  be  used  to scatter particles of  solid ingredients into a  liquid base  resulting in  the creation  of  a  suspension.
- Emollients  may  be  oils or  waxes used to make  the  skin  feel smooth and pliable.  They  are  also referred to as skin  conditioners.
- Emulsifiers  are  ingredients that  make  it  possible  to mix ordinarily  unmixable  liquids, like  oil and water, thereby avoiding separation  in  a  cosmetic  preparation.
- Emulsions  are  a  mixture  of  oil and water made  miscible  through  the  use  of  an  emulsifier,  usually creating a  milky  appearance.
- Enzyme is a  biological catalyst;  either an  animal or vegetable  derivative.  It  is known  to speed up the chemical reaction  of  a  product;  most often  used in  peels and exfoliants.
Esters  are  organic  acids combined with  alcohol, which  are  used to soften  and  condition  the  surface of  the  skin.
- Flavonoids  are  active  plant  extractions commonly  used as antioxidants.  
- Free Radicals  are  atoms or molecules that  are  unstable  because  of  an  unpaired electron.  They  can cause  damage  to the  skin  by  attacking and destroying  healthy  cells.
- Humectants  are  key  ingredients that  absorb  moisture  from  the  air;  therefore, they  can be  used to increase  the  moisture  content  of  the  skin.  They  also  have  the  ability  to assist  in  keeping cosmetic creams from  drying  out.
- Hydrophilic  is an  ingredient  capable  of  combining with  or attracting water.
- Hydrophobic  is a  water fearing substance.
- Hypoallergenic  ingredients/products  are  those  least  likely  to  cause  allergic reactions.
- Immisicible  are  unmixable  liquids such  as water and oil.
- Misicible  are  ingredients that  readily mix with  each  other such  as milk  and water.
- pH,  known  as “Potential Hydrogen”,  refers to the  acidity  or alkalinity  of  a  substance.   Solute  is a  substance  that  has the  ability  to dissolve  in  a  solution.
- SolventT  is liquid that  readily dissolves other ingredients.
- Surfactants  are  ingredients that  allow  lotions, liquids,  and creams to spread out  quickly  and evenly. They  allow  cosmetic  products to slip across the  skin  and adhere  easily. However, they  can  be  highly irritating to the  skin, potentially  causing skin  sensitivities and reactions.  
- Suspensions  are  mixtures  of  liquid and insoluble  particles that  have  a  tendency  to settle  on standing.
- Texturizers  give the  product  a  desired feel and appearance.
- Vehicles are ingredients that carry active ingredients into the skin.

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