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| diazolidinylurea |
Molecular Formula: C8H14N4O7 Molecular Weight: 278.21936
http://www.ewg.org/
About DIAZOLIDINYL UREA (FORMALDEHYDE RELEASER): Diazolidinyl urea is an antimicrobial preservative that works by forming formaldehyde in cosmetic products. People exposed to such formaldehyde-releasing ingredients may develop a formaldehyde allergy or an allergy to the ingredient itself. In the U.S. approximately 20% of cosmetics and personal care products contain a formaldehyde-releaser and the frequency of contact allergy to these ingredients is much higher among Americans compared to studies in Europe.
Preservatives!
A preservative is an ingredient we add to our creations to keep bacteria, yeast, and mold out of our water based body care products; they are considered anti-microbials.
An anti-oxidant protects oils and butters from rancidity... Anti-oxidants ARE NOT preservatives! They do not prevent bacteria, yeast, or mold from entering our creations.
grapefruit seed extract IS NOT a preservative.Liquid Germall Plus (Propylene Glycol (and) Diazolidinyl Urea (and) Iodopropynyl Butylcarbamate) should be used at 0.1% to 0.5%. It is a liquid, and is added to the cool down phase of your lotion or surfactant creation. It is what's known as a broad spectrum antimicrobial preservative. I have chosen this one because it is readily available, it is used in smaller quantities, and it isn't super expensive. It is more stable than some of the other preservatives, and it can be used in just about anything, except for anhydrous (without water) products like sugar or salt scrubs (since Diazolidinyl urea is not soluble in oils, products that contain this ingredient should not be used in products that do not contain water.)
http://www.viviforyou.com/
Imidazolidinyl urea and DM hydantoine (Germall Plus, Germall II and Germal 115) - Two preservatives that have the loosening effect of formaldehyde. Renowned for causing eczema. After parabens, these are the most used preservatives. They are well established as a main cause of contact dermatitis (the American Academy of Dermatology). There are three commercial names for these chemical products: Germall II, Germal 115 and Germall Plus. None of them has a good antimycotic action and it must be combined with other preservatives. Germall 115 releases formaldehyde at a little more than 10°C. These chemical products are toxic.
AVOID!Germall Plus, Germall II and Germal 115
I encourage your own investigation into this matter. It's important for us all to stay up to date.
Preservatives: Choosing a preservative
We know the parabens like Phenonip, Liquipar PE, and Germaben II are partially deactivated by polysorbate 20, so we might want to choose something else (say Liquid Germall Plus or Optiphen).
Preservatives: Liquid Germall Plus
my preservative of choice is liquid Germall Plus. It contains propylene glycol (60%), diazolidinyl urea (39.6%), and iodopropynyl butylcarbamate (0.6%). It's a broad spectrum liquid preservative that should be used at 0.1% to 0.5% in the cool down phase of your products. It's suitable for all but anhydrous products - the diazolidinyl urea is water soluble, so it's not suitable for all oil creations like scrubs or lotion bars.
It is a formaldehyde releaser, thanks to the diazolidinyl urea, but it is paraben free. It's suitable for all pH ranges we encounter in our products, but it isn't approved for aerosol use or oral use because of the IPBC. (This does not include misters like body sprays or toners, but pressurized aerosols). We use it in the cool down phase of our products as the diazolidinyl urea is not heat stable. Use it at 0.1% to 0.5% at temperatures lower than 50˚C.
The preservative wars
Formaldehyde donors, another class of preservative with a long history of use in cosmetics, have likewise attracted the ire of nongovernmental organizations and consumer advocacy groups. These compounds gradually release small amounts of formaldehyde into a product, killing bacteria and fungi. Given that formaldehyde is a well-known toxin, irritant, and carcinogen, it is perhaps understandable why people should object to its use in personal care products.
However, according to David Steinberg, a personal care product consultant at Steinberg & Associates, Inc., in Plainsboro, New Jersey, USA, the dose makes the poison. He recalls a discussion with a woman at a scientific meeting who was adamantly opposed to the use of formaldehyde donors in personal care products. “I asked her to take a deep breath and exhale, which she did,” says Steinberg. “I said, ‘Do you realize you just exhaled between five and ten parts per billion formaldehyde, which is what you want to ban? How are you still alive?’” He notes that cells produce formaldehyde during normal metabolic processes.
포르말린 원초적 물질이다. 천연에 존재, 소량은 전혀 피해없음
사과나 배 2~8, 양파 13, 새우2, 각종 훈제품 3~30, 특히 건표고버섯에는 100~230mg/kg , 인간의 혈중에도 약2.6mg/kg존재한다. 그 외에도 가솔린 연소시에도 700mg/1 정도 발생된다. 우리가 마시는 공기중에도 약7ppm정도의 포름알데히드가 들어있다. 포름알데히드계 수지 접착 목질계 재료로부터 방출이 많기는 하나, 그 외에도 폴리에스테르/면으로 만들어진 의류에서도 0.2~4.9, 면섬유0.8~3.9 유리섬유 1.0~2.3, 나일론 섬유 0~0.05 그리고 종이접시나 종이컵에서도 0.1~0.5㎍/g/일 정도 방출되고 있다. 이와 같이 인간의 일상생활과 항상 접하고 있는 포름알데히드는 대기중에서는 산화하여 개미산으로 되고 물과 탄산가스로 분해되며, 체내에 잔유되거나 축적성이 없어 발생원이 있어도 평형상태를 유지하며, 지속적으로 농도가 상승하지는 않는다.
폼알데하이드는 각종 어류와 육류에도 몇 십ppm 정도로, 채소 혹은 과일에는 대략 50 ppm까지 포함되어 있다. 우리가 흔히 먹는 사과, 양배추에서도 폼알데하이드를 검출할 수 있다. 폼알데하이드는 바다에서도 검출되는데, 플랑크톤, 해조류 등이 원인이다. 그러나 자연에서 발견되는 폼알데하이드는 햇볕이나 박테리아 등에 의해서 쉽게 분해된다. 인체의 혈액에도 약 3 ppm 정도의 폼알데하이드가 존재하지만 대사과정에서 쉽게 산화되고, 분해되어 몸에 축적되지는 않는다.
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