Author Archives: Colin

Are Floral Waters A Health Hazard?

Are Floral Waters A Health Hazard?

Are Floral Waters A Health Hazard?

I think this is a universal truth, but it is certainly true in labs.  The most stressful role is middle management.  I enjoyed my time as a bench chemist doing the actual work.  I enjoy supervising projects at a higher level.  But most of my bad memories of my career are when I was in between – managing  a team but reporting to senior management.  Continue reading

Your fragrances are safer, but don’t smell as good as they used to

2017 was a remarkable year for the aviation industry.  There was not a single passenger death from flying.  The industry was quick to point out that there was an element of luck involved.  But even so, given that their business is ferrying people around the world in metal tubes at a great height, to not have lost a single person in 12 months is quite an achievement. Continue reading

Marula Oil Sediment

Some thoughts on noticing sediment in some marula oil. #BeautyScientist #NaturalOils

A post shared by Colin Sanders (@beautyscientistuk) on


I don’t know how long I’ll keep it up, or indeed how long people will put up with it for.  But for the last week I have started the day with a 60 second video on my new Instagram account.  If you aren’t familiar with the platform – you can’t post anything longer than 60 seconds.  It is quite tough to say anything in such a short time frame, and I am finding that once I start it is a bit frustrating that I can’t get out everything I want to say.  So here is a bit more detail on this morning’s one. Continue reading

The Ordinary Hand Chemistry Review

Does This Product Have The Right Chemistry?

I reviewed the Ordinary as a brand back in early 2017 when they were not that well known.  I quite liked the idea, but wasn’t sure it would fly.  Well that shows how much I know, because since then they have created quite a stir.  I think they have also been generating pretty good sales, in so far as you can tell these things. But they have certainly been generating a lot of attention.  One reason for this is the, how can I put it, highly personal social media profile of the founder.  But I think the much bigger reason is that they have developed a very distinctive offering which isn’t quite like anything else out there.  I thought it would be fun to have a look in detail at one of their products. Continue reading

Are Other People’s Perfumes A Problem?

There is an article I have seen posted on Facebook a couple of times that highlights the health risks of synthetic fragrance ingredients. I won’t link to it, but if I am seeing it there is a good chance you will have seen it too. The thesis it proposes is that synthetic chemicals in fragrances are toxic and might be dangerous to people who inhale them in public places, even if they aren’t actually wearing the fragrance themselves. Continue reading

Cannabidiol (CBD) In Skincare

Fashions come and go in the cosmetics and personal care world, and everyone is keen to be on the latest trend as soon as possible. The latest buzzy thing seems to be Cannabidiol or CBD. This has an interesting background, being a derivative of hemp which is also the source of cannabis – which has been a popular if illegal recreational pharmaceutical since the sixties. So CBD comes with ready made notoriety. But it is currently being sold not as a gateway into a counter culture, or even as an aid to relaxation, but as a substance with health benefits. Continue reading

Learning Cosmetic Science for Non-Cosmetic Scientists

learning about the science behind cosmetics

A question from Emma

Dear Colin
I started reading your blog a few months ago, and find it a fascinating and useful resource. I am in the process of setting up a small business selling soaps and bath products that I make myself by hand. I started this as a hobby about 4 years ago, but found that I loved the process and the huge learning curve, and wanted to devote more and more time to it…
I am very keen to learn more about basic chemistry, but I have no idea where to start as I have no science background (if you were arty in my day, the sciences were another world!). If you are able to suggest any reading or learning material to get me started I would be very grateful.
Yours
Emma

Continue reading

Flawless Beauty, LLC Issues Voluntary Recall of Unapproved Drugs

what is the difference between a drug and a cosmetic

What is the difference between a drug and a Cosmetic?

The simple answer is it depends on the claims you make for it.  So if you sell a shampoo to treat dandruff, it is a cosmetic.  If you say it cures psoriasis then that makes it a medicine.  The more complicated answer is that if you present a product in such a way as it seems to be making medical claims then there is a good chance that the regulators will take notice and take action.  This rule is pretty much a universal one.  There are differences from market to market on just what will trigger off an enforcement, but the principle is always the same. Continue reading

What Do All These Labels Mean?

We now live in a world where information is freely available in quantities much greater than we can possibly need. But information is not knowledge. Knowing facts isn’t much use without the knowledge of how to use them. A story I came across made this clear to me.  A gentleman had bought a deodorant specifically because it had a big ‘alcohol free’ splash on the pack, and he reacts to alcohol. But in fact he still had very bad reaction to the product. When he looked at the ingredient list he noticed it contained benzyl alcohol. So, he concluded, the product was not alcohol free at all! Continue reading