Shop the viral K-beauty foundation for only $10 before Prime Day

Okay — picture me grinning behind a full face of cushion foundation, because yes, I may have accidentally stumbled into the best Prime Day warm‑up deal: the TIRTIR Mask Fit All Cover Pink Cushion Foundation, now reportedly 60 % off ahead of the main event.

If you love a good K‑beauty steal (or are about to fall deep into the rabbit hole), this one might just blow your mind.

Let me get one thing out of the way: I’ve been testing K‑beauty for years (yes, even hopping over to Seoul to wander through Myeongdong’s beauty alleys and local indie brands you’ve never heard of). So when I say this cushion is doing something special, it comes from a somewhat battle‑hardened foundation addict.

First, let’s talk consistency — the tactile, skin-on-a-good-day kind of consistency. The Mask Fit Pink Cushion has a velvety matte texture that somehow straddles the line between “powder-adjacent” and “still creamy enough not to feel dry.” It leans toward the powdery side once it sets, delivering a soft “skin‑fit finish” (as the brand calls it) that manages to cover redness and imperfections without sitting heavy or cake-y.

And the wear claims? Up to 72 hours of a flawless look, resisting smudges and disguising imperfections.

How To Apply

Because it’s a cushion, the application is part ritual, part quick fix. Start with well-prepped skin; I recommend a hydrating toner + lightweight moisturizer. Use the included puff or a dense, flat-top brush if you prefer, to press into the cushion, then tap‑press onto your face, working outward from the center.

Build coverage gently: patties in a second layer, instead of dragging it across (that’s how you avoid streaks or uneven patches). If you get too much, lightly blot. For foundations such as these, I like to set T‑zone edges with translucent powder (just a whisper) to keep the matte look sharp without flattening your glow.

One fun trick I picked up in Seoul: after your first layer, let it sit for 20 to 30 seconds, then go back with the puff and press again — it helps the formula “lock in” to the skin’s surface and adhere better. Overkill? Maybe. But the result is smoother, more even finish, especially in places I’m finicky about (cheeks, jawline).

Why K-beauty Is All The Rage

Now, why is K‑beauty so wildly popular, beyond the adorable packaging and endless Instagram fandom? The magic is in the innovation, the layering philosophy, and the way the formulas are formulated for gradual buildability and skin-friendliness. Brands constantly push forward with new textures (cushions, ampoules, jelly masks), gentle but effective ingredients, and smart formulas that multitask (like a foundation that also hydrates, controls oil, and protects).

Compared to many Western brands, K‑beauty seems less about “masking flaws” and more about “enhancing skin” (think: subtlety, luminosity that glass-skin effect people talk about). With that in mind, a cushion like TIRTIR’s doesn’t feel like makeup so much as a skin accessory. It enhances your appearance.

The Bottom Line

Let’s be clear: at 60 % off, this is a steal for a full-size cushion with good formulation and aesthetic. I know discounts get thrown around casually, but this formula, when I swatched it, punches way above typical cushion expectations.

If your skin leans oily or combo, it’s especially compelling, as the “powdery clean finish” angle is legit. So, prime yourself (pun intended). If you score this at 60 % off before Prime Day hits in full, you get a chance to trial a cushion that feels grown-up — strong enough to cover, light enough to wear daily, and with that signature K‑beauty softness.

This article was written by Victoria McDonnell, New York Post Commerce Journalist & Content Strategist, who has spent countless hours researching, testing hundreds of products and comparing the latest makeup, skincare, hair and beauty items and trends to determine what’s truly worth your hard-earned cash. She evaluates formulas, textures, ingredients and more, in addition to consulting medical and industry experts. Some of Victoria’s latest conquests include testing the best vitamin C serums on the market, and a rinse-and-repeat review of the best shampoos of 2025. Victoria, who received a beauty industry essentials certification from the Fashion Institute of Technology, has been creating shopping guides for the New York Post since 2021 and previously held positions at Insider Reviews and CNN Underscored.