Sodium Benzoate
Sodium benzoate is an okay preservative but a first class lesson in the history of organic chemistry.
Preservatives
Are Other People’s Perfumes A Problem?
Is it true that other people’s fragrances can cause allergic reactions.
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Honesty Baby Wipes Withdrawl – A Problem With A Silver Lining
We’ve had elections recently in France, the US and the UK. We’ve had quite a lot of them in the UK actually. One of the things that happens a lot in politics is that partisans for one side or the other are keen to make out that their opponents have made a lot of mistakes.
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Silver Citrate
I don’t think that animal testing works the way some people commentating on the internet appear to think it works. This was brought home to me when I was asked a question about a new preservative material called silver citrate. It is one that might appeal to the lovers of natural because both silver
Polyaminopropyl Biguanide Banned. Sort of.
A question about an ingredient from Sara. Hi, just wondering if you could give some information on the preservative Polyaminopropyl Biguanide? Apparently it was banned by the EU in January 2015 however appears to be still used in many beauty products including up to very recently Liz Earle’s cleanse and polish. Many thanks.Hello Sara,
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Methylisothiazolinone Isn’t Banned, But It Looks Like I Am
I am not a big fan of Facebook. I find the interface a bit busy and confusing, and I haven’t really worked out who can actually see stuff when I post it. But it is a big platform so I feel obliged to got on it every now and again. I was on it recently
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P&G Offers More Clarity On Which Preservatives It Uses
Preservatives in cosmetic products are a problem and will remain so until the way they are made and used changes significantly. I imagine someone somewhere is working on a project to create cosmetics in a small machine which you can programme with your favourite recipes. That would enable people to choose their own preservative option
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Does MI Cause Developmental Problems?
There are an interesting couple of points in the comments thread on my blog post asking for MI not to become a scare story, from Suzanne. She has drawn my attention to a paper from 2012 that details developmental problems in tadpoles exposed to MI. She concludes from this that MI is potentially unsafe for
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L’Oréal Withdraws Product With Too Much MI In It
There is a news story that L’Oréal have issued a product recall for their Ideal Moisture Dry and Sensitive Day Cream in Canada. The reason is that the level of MI in it is higher than Health Canada’s regulations allow. This is quite a rare event – big cosmetic companies are usually pretty good at
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Natural Antioxidants
Antioxidants get a lot of interest for the skin benefits, but for a cosmetic chemist they also have a rather more mundane use. If you are using natural ingredients in your products, and particularly some natural oils, you need to give some thought to the risks of oxidation of the product over its shelf life.
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