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The Cast Index

TIRTIR · South Korea

Mask Fit Red Cushion

Brand: TIRTIR. Category: Complexion. Format: Cushion foundation. Finish: Semi-matte. Best for: Full coverage that still moves with skin.

A cult-status K-beauty pick the Beauty Desk keeps returning to for its shade range alone.

Mask Fit Red Cushion by TIRTIR, official product photograph
Official TIRTIR product image · editorial identification

01 / The basics

What is Mask Fit Red Cushion?

TIRTIR offers the cushion in 40 shades — among the widest ranges in Korean cushion foundation — built on a silicone base with hyaluronic acid and botanical extracts.

Best for
Full coverage that still moves with skin

02 / Review

What is in Mask Fit Red Cushion?

TIRTIR builds the Mask Fit Red Cushion on niacinamide and glycerin for brightening and moisture, adenosine for its cell-signalling, calming properties, and astaxanthin — an antioxidant with UV-protective potential — alongside hibiscus, rosa rugosa, water lily and propolis extracts. It carries SPF 40 PA++ via a titanium dioxide UV filter, and the brand describes the finish as "radiant matte": full coverage without the heavy, cakey feel that often comes with higher-coverage cushions.

03 / Review

What should you know about a real, well-documented viral product?

This is one of the clearest TikTok breakout stories in recent complexion makeup, nicknamed "the red egg" for its round red compact. Grazia Daily reported a 561% year-on-year increase in global TikTok views and a 64% surge in UK Google searches for the product. Who What Wear’s Eleanor Vousden wore it from around 6am to 9pm and reported that it still looked freshly applied and resisted transfer. That is useful hands-on evidence for a long day, but it does not independently validate the brand’s full 72-hour claim.

04 / Review

Which shades does Mask Fit Red Cushion offer?

TIRTIR lists 40 shades on its official site, from 10C Shell to 55N Espresso, spanning cool, neutral and warm undertones — one of the widest ranges available in Korean cushion foundation. Vousden’s review noted the range is strongest in fair-to-medium tones and thinner at the deepest end, a fair, real caveat worth knowing before buying.

05 / How to use it

How should you use Mask Fit Red Cushion?

  1. 01Complete a skincare routine first
  2. 02Lightly press the included puff into the cushion
  3. 03Tap off excess product on the compact’s lid before applying
  4. 04Apply in thin, buildable layers with light patting motions, adding extra layers only where more coverage is needed

06 / Quick facts

What should you know before choosing Mask Fit Red Cushion?

  • SPF 40 PA++, with niacinamide, glycerin, adenosine and astaxanthin among its named actives
  • 40 shades, from 10C Shell to 55N Espresso — among the widest ranges in Korean cushion foundation
  • Nicknamed "the red egg" for its round red compact; Grazia Daily reported a 561% year-on-year increase in global TikTok views
  • The brand claims up to 72-hour wear; Who What Wear’s Eleanor Vousden reported strong results over a roughly 15-hour day, not a full 72-hour test
  • 18g compact — around $17.50–25 / £25
  • Marketed for sensitive and acne-prone skin, with a silicone-based, buildable formula

Facts on this page are drawn from the brand’s own product information and named, reputable press coverage, summarised in our own words. Inclusion in the Beauty Desk edit is editorial and independent of any commercial relationship. Last reviewed 2026-07-15. Corrections: desk@thecastindex.com.

FAQ

Mask Fit Red Cushion, answered

What is Mask Fit Red Cushion by TIRTIR?

Mask Fit Red Cushion is a cushion foundation from TIRTIR, formulated for full coverage that still moves with skin. TIRTIR offers the cushion in 40 shades — among the widest ranges in Korean cushion foundation — built on a silicone base with hyaluronic acid and botanical extracts.

How many shades does TIRTIR Mask Fit Red Cushion come in?

It comes in 40 shades, from 10C Shell to 55N Espresso, spanning cool, neutral and warm undertones — though the range is strongest in fair-to-medium tones.

Does TIRTIR Mask Fit Red Cushion actually last 72 hours?

TIRTIR claims up to 72-hour wear. Who What Wear’s Eleanor Vousden reported that it still looked freshly applied after a roughly 15-hour day, but that test did not run for 72 hours, so the maximum claim remains manufacturer-reported.

Does TIRTIR Mask Fit Red Cushion have SPF?

Yes — it carries SPF 40 PA++ via a titanium dioxide UV filter.
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