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Showing posts with label cosmetic allergy. Show all posts
Showing posts with label cosmetic allergy. Show all posts

Sunday, February 21, 2016

What is Paraben Allergy?



The FDA doesn’t regulate the chemicals in cosmetics and it’s up to consumers to be aware of the chemicals we put on and in our bodies on daily basis.  More and more, people are experience allergy to their cosmetics and personal care products.  These reactions cause itchy red swollen skin. As a cosmetic allergist, I have many patients who are a loss for what’s triggering the reaction. They know that certain lipsticks make their lips dry and irritated or sometimes a shampoo will trigger itchy dry irritated skin, but are confused about the exact cause.  This type of allergic reaction is called contact dermatitis.  

One common allergen in personal care products that triggers an itchy eczematous rash is parabens. 


What are Parabens?
  • Parabens first introduced in the 1920’s are preservatives to help prevent bacterial and fungal growth.  Since their introduction, they’ve become some of the most common preservatives uses. 
  •  Parabens come from an aromatic organic acid naturally found in fruits and vegetables called 4-hydroxybenzoic acid.  This forms the basis for parabens.
  •  There are many types of parabens, but the most commonly used ones are methylparaben, propylparabens and butyl parabens.  These types of parabens are often mixed into one product type to provide broad spectrum protection against microorganisms.  Manufacturers do these to reduce the concentration of each one individually but provide the same type of preservative effect.

  • Parabens can also cross react with chemical commonly used in sunscreens – para-aminobenzoic acid (PABA) esters, and in hair dye (paraphenylenediamine).
·      Parabens may also go by these names:
o   Methylparaben
o   Ethylparaben
o   Propylparaben
o   Butylparaben
o   Benzyl-parahydroxybenzoate (p-hydroxybenzoate)
o   Methyl-parahydroxybenzoate (p-hydroxybenzate)
o   Ethyl-parahydroxybenzoate (p-hydroxybenzoate)
o   Propyl-parahydroxybenzoate (p-hydroxybenzoate)
o   Butyl-parahydroxybenzoate (p-hydroxybenzoate)
o   Parahydroxybenzoate (p-hydroxybenzoate)


Where do you find Parabens?
  • Parabens in personal care products:
    • According to the American Chemical Society, they are used in almost 85% of all personal care products.  Common products like toothpaste, shampoo, lotions, sunscreens, moisturizers and lipsticks contain parabens.  They are also found in some topical medications like corticosteroid creams and anti-itch sprays. 
  • Parabens in food products:
    • You might be surprised to learn that parabens are added to food products like: pancake syrup, mayonnaise, salad dressing, baked goods, candy, food dye, soft drinks and fruit juices, spiced sauces, processed vegetables, and jams/jellies
    • Parabens are also found naturally in food products like mango, blueberry, mango, strawberries, cocoa beans, carrots, vanilla, and onions.
    • You can also find parabens naturally in some wine and beer products.

What is Paraben Allergy?

  • Repeat exposure to skin, particularly damaged skin, but parabens can trigger an allergic reaction called contact dermatitis.
  •  According to a 2015 study by Warshaw et al, parabens caused anywhere from 1.4% of of all contact reactions. Exposure to parabens can cause your skin to become dry, itchy and swollen.


What Should you Do if You Suspect You Are Allergic to Parabens?
  • If you suspect you have paraben allergy, speak with your allergist about having a special chemical allergy test done called patch testing. 


How Can you Avoid Parabens?
  • If you have paraben allergy, then you should strictly avoid any product or food that contains these chemicals
  • Reading ingredient lists on your personal care products and food labels will be essential to preventing a future reaction.
  • Using products that are oil based will help limit your exposure
  • Be especially careful with sunscreens, processed foods, topical medications and other unexpected sources of parabens.  
  • If you visit gramercyallergy, we will generate a paraben free list of products you can safely use. 

Have further questions regarding paraben allergy or suspect you have paraben allergy?  Visit GramercyAllergy. We are experts in cosmetic allergy.  We will help identify which cosmetic product is triggering your allergy. 


@gramercyallergy



Thursday, January 31, 2013

Roll out the Red Carpet....the winner is!

Each year the American Contact Dermatitis Society chooses an allergen of the year.  There's not as much pomp and circumstance as the Oscars but it's a big win.  This  award draws attention to allergens that are very common and/or under recognized.  Chemicals are chosen based on their prevalence in products and relevance of causing allergic reaction. 


The 2013 winner is..... 

Methylisothiazolinone


What is methylisothiazolone (MI)?
  • MI was first introduced  in cosmetics, toiletry and suncreen products in 2005.
  • It's used as a preservative to kill bacteria and fungus.
  • In the 1980's, it was used in combination in high doses (15 ppm) with a preservative called methylcholoroisothiazolinine/methylisothiazolone in (MC/MI) "leave in" products like shampoo and conditioner
  • After the MC/MI introduction about 8% of people had reactions to the recommended doses, and concentrations were reduced to 7.5 PPM in the late 80's and early 90's
  • In 2000, MI was pulled out of the MC/MI combination with the hopes that it wouldn't be as strong of a cause of allergic reaction.  They thought it was a weaker sensitizer
  • Even though they pulled it out, they didn't limit concentrations!  And concentrations increased by 25 X
  • In 2004-5, the first case reports of MI allergy were described after wallpapering and using paint.
  • Only 7 years ago, we started seeing reports of people developing allergic reactions in wet toilet paper
  • Since 2007, the use of MI as a preservative has doubled along with reactions
  • We currently don't know how common MI allergy is.
Where do you find  methylisothiazolone (MI)? - Almost any product that you'd put on your body.
  • Cosmetics
  • Baby products (lotions, oils, creams, and powder)
  • Makeup
  • Body Washes
  • Hair care products (shampoo, conditioner, straighteners, rinses
  • Hair coloring products 
  • Nail care products
  • Deodorants
  • shaving products
  • Skin care products
  • Sunscreen
  • Wet Wipes (babies, and moist towelettes)
When should you suspect you have a methylisothiazolone (MI) allergy?
  • MI allergy is common but difficult to distinguish from other preservatives that are use in many personal care products.
  • Consult an allergist/immunologist (Find an Allergist) or dermatologist if you have an itchy rash that won't go away.
  • They'll perform patch testing and then you'll know!


Want more information?

Tuesday, July 3, 2012

Methyldibromo glutaronitrile/phenoxyethanol Allergy



Could one product cause a rash on the eyes, hands and vagina?

Absolutely! Methyldibromo glutaronitrile/phenoxyethanol is a common preservative found in make-up, personal wipes, shower gels, shampoos, massage oils, and sunscreen, body, face and hand lotions. It’s composed of 80% phenoxyethanol and 20% methyldibromo glutaronitrile. The methyldibromo glutaronitrile is the principle agent causing sensitization.

Each of my patients admitted to using personal care wipes on a regular basis.

The incidence of sensitization is on the rise and repeated exposure to this product at low levels over time can cause an allergic contact dermatitis. This substance is monitored closely in Europe.

Methyldibromo glutaronitrile/phenoxyethanol is difficult to avoid and goes by many names on ingredient lists:

• 1,2-Dibromo-2,4-dicyanobutan

• 2-Bromo-2-(bromomethyl) glutaronitrile

• 2-Bromo-2-(bromomethyl) pentanedinitrile

• Glutaronitrile, 2-bromo-2-(bromomethyl)-

• Methyldibromo glutaronitrile

• Pentanedinitrile, 2-bromo-2-(bromomethyl)-

What should you do if you have this allergy?

Avoid the chemical! Simple avoidance of products containing this preservative will alleviate your rash.

What are some safe personal wipes without methyldibromo glutaronitrile?

Always-Wipes to go

Charmin-Freshmates Wipes

Seventh Generation-Free & Clear Baby Wipes

Visine-Soothing Wipes
Suspect you might be sensitive to methyldibromo glutaronitrile?

• See your local allergist for patch testing.
Want more information?
 http://householdproducts.nlm.nih.gov/index.htm is a great website that is easily searchable.