Beauty Encyclopaedia: Cyclopentasiloxane

Ever taken a look at some of the ingredients in some of your favourite makeup and skincare products. If you ever have, or if you just looked because I said something, you'll probably notice a hell of a lot of words and names on there that you've never heard of before and certainly could never pronounce. With such a big movement at the moment towards more natural and organic products, many of which I have featured on this blog, I think we're all becoming a little more nervous and curious about just what the hell these big, long scientific names really mean. I find I'm becoming more prone to picking up products, particularly skincare, that I'm actually able to pronounce and know what at least most of the ingredient names on the back of bottle are. However, there are still plenty of products out there throwing these wacky names at us, and I figured it's better late than never to finally uncover what the hell some of these mean. So that's what this new series on my blog is going to be all about. Beauty Encyclopaedia will take you through what exactly some of these ingredients are, what they do, if they're really good or bad for us and some of the products that actually have them within them.

To kick off this first entry, we're going to be talking about Cyclopentasiloxane; I know right. I came across this tongue-twisting, headache-inducing ingredient after looking up some of the ingredients that can be found in my NARS Sheer Glow foundation. So what is Cyclopentasiloxane?

As potentially worrying as the name may sound, it's actually one of the most common ingredients found in products today. It's a silicone derivative that is also found in things like hairspray and sunscreen. When applied, it creates a microscope protective layer, which makes it quite popular for use in hair care products. The benefit of using it in skincare and makeup, apart from the fact it's a cheap alternative, is that it has low viscosity, which means, when applied to the skin, it doesn't leave any sort of significant residue behind and just leaves your skin feeling smooth while helping to lock in moisture. It also fills in any fine lines and wrinkles on your face which leaves your skin looking a little younger while wearing any product that contains it. You may most commonly recognise it from your hair conditioners. It's this product that allows conditioner to leave your hair feeling silky smooth. It's not known to have any sort of negative side effects on humans, though like anything there is always the slight chance it may cause skin irritation if someone happens to have a particular sensitivity to it.

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