'The $9 product that's so good at fixing my redness, I bought a stash of them.'

So here's the thing — my face likes to betray me on the regular by turning into what can only be described as a tomato-meets-heater situation. And after trying approximately 47,000 products that promised to fix my rosacea (spoiler alert: they didn't), I've finally found something that actually works. No, I'm not being dramatic (for once).

If you've got rosacea, you know the drill. That fun moment when someone says "oh, you look a bit flushed!" and you have to resist the urge to say "nah, my face just likes impersonating a stop sign."

And if you don't have rosacea? Well, stick around anyway because my new holy grail product has some other tricks up its sleeve that might interest your non-betrayal-prone skin (I'll pretend not to be jealous).

Watch: Em Vernem tries the foundation whisking hack on You Beauty. Post continues below.

My cheeks are the main offenders— they get red, blotchy, and genuinely feel like they could fry an egg. My face is constantly red, but stress in particular can induce a flareup (which is rude because I then become even more stressed).

So, what is the product?

Recently, I stumbled across something that literally changed my makeup routine: the MP Cosmetics Hydro Glow Cooling Stick from Priceline. It looks like a mini deodorant stick. And it's only $9.

It's become my holy grail product, and I now own three — one for my handbag, one for my desk, and one that lives permanently on my bedside table.

A miracle in a stick.

How does the Hydro Glow Cooling Stick work?

When you glide this little miracle worker across your face, it provides an incredibly soothing and cooling sensation that feels like pressing an ice pack to your skin— minus the mess (and weird looks). But the best part? It actually helps reduce the appearance of my redness— like, significantly.

The cooling effect doesn't just feel good, it helps calm my face down.

Listen to what happened when I tried the hug-proof foundation test. Post continues below.

I've gotten to the point where I can skip foundation and concealer on good skin days (something I never thought I'd say). Just a swipe of this cooling stick, and my rosacea becomes noticeably less angry. It's become my pre-makeup essential, creating the perfect canvas for those days when I want to wear a full face as well as my little calming machine for when I want to go makeup free.

If you don't have rosacea (wow, so happy for you), this is also a great product to use to get rid of post-workout redness or if you just want a cooling refresh.

The verdict.

Red girlie VS less red girlie.

Look, I probably shouldn't even be telling you about this because I'm terrified it's going to sell out. But I also can't keep this secret to myself — it wouldn't be fair to my fellow rosacea girlies.

For anyone dealing with redness, heat, or general skin sensitivity, this cooling stick is genuinely worth trying.

It's become my go-to recommendation to friends, and I've yet to meet someone who hasn't fallen in love with it.

Side note: While this works brilliantly for me, remember that everyone's skin is different. What works for my rosacea might not work for yours.

Tell me in the comments below what you think! Just... maybe leave one on the shelf for me?

If you want more from Emily Vernem, you can follow her on Instagram @emilyvernem.

Feature image: Supplied.