Mineral Oil Myths Explained: Cancer, Safety, and Skincare Benefits

It's been awhile as life has gotten busy! But I'm back with more skincare geekery - this time on mineral oil! I've wanted to write this post for awhile, because over my years being an amateur skincare nerd, I've noticed lots of fearmongering with respect to mineral oil. Some people believe that 1) mineral oil is bad for you because it prevents your skin from breathing, 2) mineral oil causes cancer, or that 3) you shouldn't use it because it is derived from petrochemicals. I'll be taking a look at these three myths in this post!

First though, a little bit of a primer into mineral oil itself.

What is mineral oil?
Mineral oil is a liquid mixture of hydrocarbons (i.e. molecules comprised only of carbon and hydrogen atoms) obtained from petroleum, and consists of saturated hydrocarbons having carbon numbers predominantly in the range of C15 through C50. As seen in the bottles of baby oil, it is easily recognizable as an oily transparent liquid. It's manufactured by the distillation of petroleum, and then followed by refining of residual fractions to meet the standards for cosmetic grade mineral oil.

Peel-Off Masks: Why They're Bad For Your Skin

Recently, I've been seeing a lot of press about peel-off masks, and how awesome they are. I've blogged about somewhat dubious skincare and beauty product trends when I think the hype gets out of hand (I've always been kind of terrible as a shill that way, LOL), but this is probably one of the more egregious ones I've seen lately, so I'll get to the point - I'm really NOT a fan of peel-off masks at all, regardless of brand, and I highly discourage anyone from using them.

Unfortunately, they're really popular, and seem to be receiving a lot of mainstream press as of late. A quick google search turns up the following:

What a cursory search for "peel-off mask" returns

Why are these masks so popular? In a word, it's novelty. Prior to peel-off masks becoming popular, most masks have been clay or gel masks that you leave on and wash off, and can often get messy and drippy. By comparison, peel-off masks seem so much more fun and easier to use - the mask doesn't drip, and instead of washing off the mask, you get the satisfaction of peeling off the mask like this:

Part of the a-peel (see what I did there?) of the mask is that you peel it off (Source)

And, now brands are adding to the fun and entertainment factor of peeling masks by doing things like adding glitter to them, which while fun, doesn't really enhance the skincare value of the product in anyway. But, damn if it doesn't look like the most fun to apply and peel off though!

And yes, this is a My Little Pony mask collection (Source)

But as I've mentioned (right in the title, too), I'm not a huge fan of peel-off masks. I personally find them really bad for skin, and the general formula of these peel-off masks is such that by their nature, they're rather drying and sensitizing to the skin, and it's hard to escape that fact, no matter how much glitter you throw into them. We'll take a look at the general formula of such masks, and see how the masks work, and then check out the ingredients lists of some of the more popular peel-off masks, to see how much they adhere to the general formula. It's lots of ingredients reading. But it's fun! And worth it for better skin!

Natural and DIY Skincare and Chemicals: You Ask, I Answer

Here's my second "You Ask, I Answer" post, where I consolidate some common (and not so common) reader questions. Reader questions aren't a new thing on my blog, and I've written a bunch of posts based on reader questions over time, including some of my personal favourite science-y posts, like my post on parabens, and my post on talc. But I thought it would be nice if I could share some of my reader Q&As with everyone else too!

Today's question on DIY and natural skincare comes from Chelsi:

Chelsi asks:
I want to ask u something. It's so hard for me to get organic and natural skincare that avoids not using harmful chemicals...the fact is there are lots of brands outside there use chemical ingredients... I want to make DIY skincare but I think i don't have enough time to make it while I have to work and after work I am tired and just wanna take a rest..So , do you think it's okay to still using the skincare which still contains chemical ingredients? thx :)

Your question is quite a big hairy one, so I'll just touch on some key topics that you raised:
1. Are chemicals really a problem in skincare?
2. So when should I avoid "chemical" ingredients?
3. Can you actually DIY your own skincare, and if so, is it actually "better" that what's available out there?

Reader Question: Elizavecca Carbonated Bubble Clay Mask Ingredients Analysis

As some of you may know, I do feature reader questions on my blog from time to time, especially when they provide inspiration for science-y posts, like this post on parabens and safety, and this other post on talc and safety. Recently I received a reader question on the Elizavecca Bubble Clay Mask, and it's an ingredients analysis type of question - exactly the sort of questions I love to take a stab at!

Elizabeth asks:
Do you think you could evaluate the "Elizavecca Bubble Clay Mask"? I bought it but I'm not sure if it actually works...it does make my skin feel smooth and soft right after but I'm not sure about any long term effects. I'm afraid this product might be mostly skintertainment because of the bubbles.

Elizavecca Carbonated Bubble Clay Mask: A niche product that has gained a little bit of a cult following (Source)

The Elizavecca Bubble Clay Mask is something of a niche cult product that has gained popularity among some kbeauty fans over the past couple of years or so, along with other bubble masks. Elizavecca is a fairly niche Korean beauty brand, and their Bubble Clay Mask seems to have gotten popular in part due to the novelty factor. Basically, the Bubble Clay Mask goes on like a normal clay mask, but once applied, quickly foams up with lots of little bubbles when you apply it, like so:

Elizavecca Carbonated Bubble Clay Mask: A large part of the novelty is the bubble and foaming effect (Image source)

I'm pretty sure a part of the reason why they're so popular is because the foam gives rise to all sorts of really cute, funny, or weird (sometimes all at once!) selfies, like this. I mean, imagine applying a mask and then having it foam and bubble up right on your face! That's pretty fun, isn't it?

Elizavecca Carbonated Bubble Clay Mask: Possibly the most fun ever when masking (Image source)

That said, bubble masks, despite the novelty value, aren't actually anything super groundbreaking, and masks of this format have existed for awhile. In fact, waaaay back in 2011, I reviewed just one such bubble mask from another Kbeauty brand, The Nature Lab Oxygen Shield Bubble Mask. And more recently in 2014, I reviewed a sort-of-similar product from a Western brand, the Elizabeth Arden Ceramide Boosting 5-Minute Facial, a 2-part skincare product where the first part also consists of a foaming mask. So while the Elizavecca one is more popular, it certainly isn't the first of its kind.

Anyway, since this is a reader question, let's get back to the question, and then we'll talk a bit more about bubble masks in general. What's inside the Elizavecca Bubble Mask, and what makes it bubble? Does this bubbling really help skin? Do bubble masks in general really bring any skincare benefit beyond being novel or entertaining? Let's take a look, starting with the ingredients list!

Talc, Cosmetics, Safety, Cancer: What the Science Says About Talc in Makeup

Is talc in cosmetics dangerous or safe? Does it cause cancer, particularly ovarian cancer? Is it safe to use talc in makeup? With the news about Johnson and Johnson being sued over the talc in their baby powder supposedly causing ovarian cancer, I've been asked a couple of times about talc's safety in makeup. One such question came from my lovely reader Joanna (hello Joanna!) as below:

Hello!! Just wanted to say your blog is very very informative and I've made several purchases following the information on your reviews. Since you're so into looking at ingredients of cosmetics too I was wondering what your thoughts are regarding talc-based products, especially bronzers and loose face powders. With the recent news about Johnson and Johnson's baby powder case it's sort of alerted me a little to think about this. I know that we don't use make up in the genital area hence ovarian cancer risks are unlikely but there's also mixed evidence about chronic inhalation of talc maybe causing lung cancer. What are your views in this area? It has raised my concern as I believe effects are cumulative but I've also realised a lot of big brands such as Bobbi Brown, Benefit and 3CE all have talc based powders and bronzers. Please share your opinion :)

From her question, it's clear that there is concern about talc on multiple fronts - applied on skin, inhalation, and also perineal use (aka, using talc down there in the genital area). Although Joanna was specifically asking about talc with respect to inhalation, I thought, in view of current events, as well as other questions I've been getting, I'll just look at all 3 concern areas of skin, inhalation, and perineal use - that way, I have a neat, more complete summary of what the science says on talc in general that will hopefully be more helpful!

Talc has been in the news lately due to J&J's lawsuits, prompting questions as to talc's safety (Image source)

First though, before I start, I would like to say that this is not in any way meant to detract from the suffering of women who do have ovarian cancer. It is a serious disease with far-reaching effects, and my sympathy goes out to all ovarian cancer sufferers and their families, and they deserve our support. But for the purpose of this blogpost, I am most interested in responding to Joanna’s question, which is specifically about talc in cosmetics. So although this question certainly is prompted by current events, the scope of this blogpost is not to talk about the J&J lawsuit, but just to look at what the science says about the safety of talc in cosmetics. So, I hope that noone takes offense the narrow scope of this blogpost. Trust me, this pretty narrow scope is already quite a lengthy blogpost!