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Parabens

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by

Kimberly Boey

on 9 March 2011

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Transcript of Parabens

PARABENS What are parabens? Parabens are a class of chemicals that consists of short alkyl chain esters of para-hydroxybenzoic acid. Uses preservatives in cosmetic products
food additives
pharmaceutical industries
medicine
antifungal agent A new discovery... when product became contaminated with bacteria, terrible health problems occured
manufacturers began putting Parabens in their products when they discovered the short shelf life of lotion
1950s-people struck blind after using spoiled lotions
government-became a law to add preservatives in body care products Bacterial and fungicidal properties Where do they come from? found naturally in plant sources blueberries prunes cinnamon How are they produced? the esterification of para-hydroxybenzoic acid Where are they found? make-up shampoos soaps deodorants lotions lubricants 4 most common types Methyl paraben Ethyl paraben Propyl paraben Butyl propane IUPAC name: Methyl 4-hydroxybenzoate
Molecular formula: C8H8O3
anti-fungal agent, antiseptic, food preservative
blueberries
skin aging, DNA damage IUPAC name: Ethyl 4-hydroxybenzoate
Molecular formula: C9H10O3
preservatives in skin care products
irritates eyes, skin, and causes chromosomal abnormalities IUPAC name: propyl 4-hydroxybenzoate PARABENS What are parabens? Parabens are a class of chemicals that consists of short alkyl chain esters of para-hydroxybenzoic acid. Uses preservative in cosmetics
food additives
antifungal agent (medicine) History when products became contaminated with bacteria, terrible health problems occured
manufacturers began putting Parabens in their products when they discovered the short shelf life of lotion
1950s-people struck blind after using spoiled lotions
government-made it a law to use preservatives Where do they come from? bactericidal and fungicidal properties naturally in plant sources blueberries prunes cinnamon Where are they found? make-up soaps shampoos deodorant lotions toothpaste lubricants Parabens are produced by the esterification of para-hydroxybenzoic acid Most common parabens Methyl paraben Ethyl paraben Propyl paraben Butyl paraben IUPAC name: Methyl 4-hydroxybenzoate
Molecular formula: C8H8O3
anti-fungal agent in cosmetics, food preservatives, antiseptic
blueberries
skin aging, DNA damage IUPAC name: Ethyl 4-hydroxybenzoate
Molecular formula: C9H10O3
preservative in skin care products
irritates eyes, skin and causes chromosomal abnormalities IUPAC name: propyl 4-hydroxybenzoate
Molecular formula: C10H12O3
preservative for cosmetics
cancer, allergies, affects the endocrine system IUPAC name: butyl 4-hydroxybenzoate
Molceular formula: C11H14O3
preservative in cosmetics and antiseptic for cosmetics,
medicine, food and film By: Kimberly Boey THANK YOU! :) LISTEN UP, LADIES!
Now that you know the possible effects of parabens in cosmetics and skin care products, don't just put make-up on with one eye closed! USE PARABEN-FREE PRODUCTS
TO ELIMINATE ALL RISKS :) Esterification is when an alcohol and a carboxylic acid react together (with sulphuric acid as a catalyst) to form an ester. General chemical structure of a paraben
*where R is an alkyl group -it's better to be safe than sorry! Are there any alternatives that can be used to replace parabens instead? Researches have shown that there may be an alternative for this chemical. Many organic acids are taking the role of preservatives in our line of cosmetic products.
Another option used to replace parabens is diazolidinyl urea (DU) (and guys too?) When parabens have been applied directly onto the skin, studies have shown that it is being absorbed through the blood stream instead of the gastrointestinal tract.
Many studies also show that parabens can be a leading factor towards breast cancer.
Some of the health hazards associated with parabens include interference with hormonal system, increased skin damage, DNA damage and copies of the human sex hormones (estrogens and testosterone) Potential effects on human health Some researchers claim that parabens in cosmetics cause no harm to users
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