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What’s the difference between Oxidizing and Dry Down? Makeup Rulez Ep 9.

Since the new Fenty Beauty line came out, a new word is on every beauty bloggers lips: Dry Down. So what is it and what’s the difference between Oxidation and Dry Down? I’m going to tell you!

What is Oxidizing?

Let’s start with an oldie but goodie. What does oxidation mean? Scientifically, oxidation is when a molecule, atom, or ion loses electrons. So for something to oxidize the oxidation state has to rise. To give an example that actually makes sense, think of an apple turning brown or a pipe rusting. Some things oxidize easier than others depending on the circumstances. Speaking of circumstances, one thing that has to happen when something rusts is not only oxidation, but also reduction. Basically oxidation causes a loss of electrons, reduction causes a gain in electrons. A redox reaction is what causes rust. Both oxidation and reduction have to happen at the same time.

What does this have to do with makeup?

Alot actually. Making cosmetics products is chemistry. So knowing what we know about oxidation, what causes foundations to oxidize through out the day? Well for one oxidation takes time. That’s why when you apply your foundation it may match, but a few hours later it may get darker or orange. Metals in general tend to oxidize easiest. This is why mineral makeup tends to get darker easier. This is also only one of the reasons makeup can oxidize. Unfortunately anything can kick of the reaction that can cause your foundation to change color. It could be anything from too much moisturizer, too much sebum, all the way to using the wrong primer, or the temperature outside. Unfortunately with oxidation you may have to become your own chemist, so to speak. Try different combinations and see what works best with your skin. Now that we know what Oxidizing is and that basically anything can cause it…

What is Dry Down?

Literally what it sounds like. If something is liquid, like say foundation, and there is water in the formulation, some of the water will evaporate. It’s kind of what water does after a while.So just like paint drying, foundations can get a little darker in the first few minutes. And yes, it’s that simple. Sorry to disappoint.

So what is the difference between Oxidizing and Drying Down?

Oxidizing is something that happens over the course of the day. Dry down happens within the first few minutes. And yes, something can oxidize after it dries. Does that make something a bad product? No. That’s why there’s so many products out there.

But what do you guys think? Have you experienced Oxidation? Have you experienced Dry Down? What did you do to fix it? Let me know in the comments below!

 

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