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http://www.choice.com.au/viewArticle.aspx?id=104191&catId=100447&tid=100008&p=4&title=Personal+care+products%3a+myths%2c+rumours+and+facts+(archived)
Mineral oil is bad for your skin
Mineral oil (oil derived from petroleum) is found in many cosmetics, such as moisturisers, make-up and barrier creams. But some people are concerned about its effects.
The claims
Websites reporting the dangers of toxic ingredients in cosmetics say mineral oil is contaminated with known carcinogens. It also dries the skin, causes premature aging and acne, robs the skin of vitamins A, D, E and K, and prevents the skin absorbing collagen from collagen moisturisers.
The facts
Some petroleum oil derivatives may contain polycyclic aromatic hydrocarbons (PAH), some of which are known to be carcinogens. People who work with such mineral oils have to take precautions to avoid skin contact.
However, the mineral oil used in food and cosmetics, known as medicinal white oil, is highly refined, with extremely low PAH levels. Medicinal white oil has to meet stringent purity requirements defined by the US FDA and international standards, and there’s no evidence of cancer being caused by this oil.
Unfortunately there are no references provided for the other claims against mineral oil, so we can’t check the validity of the sources. We checked medical abstracts and couldn’t find any published research on the dire effects of cosmetic-grade mineral oil.
Mineral oil in moisturisers acts as a barrier between the skin and air: it doesn’t add moisture to the skin, rather it prevents moisture loss. There’s no evidence it dries the skin, causes premature aging, or robs the skin of vitamins. Since collagen molecules in moisturisers are too large to be absorbed into the skin anyway, mineral oil can hardly make things worse. However, some people may find it makes their acne worse. Petrolatum, a petroleum-derived cosmetic ingredient found in lip balms (among other things) has also been found to cause acne in some people.
The verdict
There’s no evidence cosmetic-grade mineral oil causes cancer and as far as we could establish it isn’t bad for your skin. Of course, lack of evidence of harm isn’t the same as evidence of lack of harm — but the onus of proof should lie with those making the wild claims in the first place. Many anti-mineral oil crusaders are selling ‘natural’ products free from the evil oil.
This article last reviewed February 2004
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mae-art  
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22 ส.ค. 49 22:31:32
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