Friday, October 9, 2009

Chem 101: Why Your Made-Up Face Wants Oil

Two hydrogen atoms meet at a bar.

First atom: 'I've lost my electron.'

Second atom: 'Are you sure?'

First atom: 'Yes, I'm positive.'

Ba Dump-BA! See? Chemistry can be fun. Especially when it directly applies to the contents of your makeup bag.

My favorite smart girl, Sarah from The Beauty Brains, has another Chem 101 lesson: Makeup removers use the "like dissolves like" property of chemicals. Since oils can be dissolved in oils, and makeup is oil-based, your best bet for a makeup remover requiring the least amount of rubbing is (bingo!) oil-based makeup remover.

Want to take this a step further? If you're wondering why makeup is oil-based in the first place, it's because materials such as waxes, oils, pigments, and emollients have stay-put power; they don't dissolve in water. But that also means you can’t remove them with water either. Standard facial cleansers don’t work well on makeup because they are designed to gently remove surface dirt and oil. The more gentle you make a cleanser, the less ability it has to remove heavy oils. Cleansing ingredients are generally harsh for your face. If manufacturers made the cleansers with more detergent, you could remove the makeup but you would also remove all the natural facial lipids and dry out your skin. Thus, the need for makeup remover.

Happy Friday! You just earned a PhD in pretty.

16 comments:

Megan said...

So that's why I love the Philosophy Purity face wash so much! It really is amazing - it takes off all my makeup (even mascara) at the end of the day and my skin always feels so nice afterward. Fun post!

Crystaleyes said...

This is a really nice product. Thank you for telling me exactly why I need it! LOL...I need to justify my addiction somehow!

Eden said...

Purity is pretty awesome! It's the only face wash I use. It's also the only face wash I've ever tried that actually makes my skin feel super soft and pretty! AND it's not TOO expensive :) LOVE!

Megs said...
This post has been removed by the author.
Megs said...

I love how simple and clear you made that! If I only had you for a chemistry teacher!

1up said...

I actually do NOT like the Purity facial wash-it makes my skin feel taut and dry every time and I have normal/combination skin.

The post was a good basic science lesson in beauty. :)

Anonymous said...

Yah. Purity dried the hell out of my face. Oh and I am combo with an oily forehead.

Anonymous said...

So no more water??

sophie said...

Yeah, I don't like the Philosophy Purity face wash...or any of the Philosophy products. I prefer other cleansers from clinique or neutrogena :)

Anonymous said...

I agree- not a fan of Philosophy products. I use Clinique's facial cleansers because they don't irritate my skin and do not strip my skin of moisture.

Trixie Firecracker said...

If you don't like Purity, dip a Q-tip in olive oil use that to remove eye makeup. It works way better than any makeup remover and won't leave your skin feeling dry. You still have to wash your face afterward though!

Anonymous said...

Try Shu Uemura cleansing oils. they get off ALL your makeup and there are many different ones for all skin types

Sam S said...

I don't use this product but after reading what you said about it, I'm tempted to use it! The make up remover that I use does, in fact, make my face more oily, and now I understand why. Thanks for that lesson!

betty dinh said...

I love this face wash. My skin is always dry and flaky, but has been super soft and moisturized ever since using this facial wash.

Nanceh said...

mixed reviews, eh? I just won a huge bottle from allure, and I will be judging for myself =D

d said...

i have acne prone skin and the best thing i have found to remove makeup is plain old olive oil. it cuts through my mac makeup and two-faced mascara. i'll usually follow up with a light wash with the old school neutrogena bar of soap. may face feels moisturized yet clean.