TIRTIR Mask Fit Red Foundation 30ml (11 colors)

🧴 Product Overview

• Brand: TIRTIR (K-Beauty)

• Product: Mask Fit Red Foundation (liquid form, not cushion)

• Size: 30 ml bottle with pump

• Shade Range: Available in up to 30–40 shades, including 11 initial core options based on light to deep skin tones with Cool (C), Neutral (N), or Warm (W) undertones 

• Finish: Satin‑glow, medium-to-full coverage; breathable, second-skin texture that lasts up to 72 hours 

🌟 Highlights & Formula Benefits

• Exceptional Wear: Designed to be crease-proof, humidity-resistant, and lightweight—suitable even in tropical heat 

• Skincare-Infused: Includes botanical actives like red propolis, red hibiscus, and astaxanthin for antioxidant protection and skin-firming benefits

• Oil Control & Hydration: Water Flower Complex delivers moisture while ultra‑fine powders absorb excess oil for a polished, smooth complexion 

🎨 Shade Selection & Oxidation Insights

• Shade naming: Ex: 17C, 21N, 24W, 27N, etc., indicating undertone and depth (C = pink/cool, N = neutral, W = warm/yellow) 

• Oxidation behavior: Widely reported that the foundation oxidizes—shades often deepen or shift orange/pink within 10–20 minutes of wear 

  • For example, users report needing to choose 1–2 shades lighter than usual, as it tends to deepen after application 

  • Some users with matching undertones experience less oxidation if the correct undertone is picked

• Mini/sample kits recommended: Given the oxidation, many advise trying the trial blister packs first and letting swatches sit for ~15 minutes before settling on a shade 

👍 Pros & 👎 Cons from Community Reviews

👍 Pros

• Excellent coverage and longevity—often praised as “flawless” and “long-wear” even in heat/humidity 

• Smooth satin finish, offering a skin-like radiance without heaviness or caking if applied thinly 

👎 Cons

• Strong oxidation reported across many skin types; can result in visibly orange or darkened complexion after a few hours 

• Some users report cakey texture, cracking, or pilling—particularly when layered too heavily or used without proper prepping/moisturizer 

• A small number experienced allergic reactions to the botanical-rich formula, including hives or itching—patch testing advised 

📋 Quick Comparison

👤 Best For Whom?

• Seekers of long-lasting, high-coverage foundation that blends into a natural, satin glow—especially for oily or combination skin in humid climates.

• Those who prefer a skincare-infused base with antioxidant and firming properties.

• Users comfortable shade-swapping and testing, willing to use a sample pack to avoid mismatches.

🔍 Community Tips

“It oxidizes so much! I got to try the shade 24 in the red cushion and it went from slightly too light to about my shade.” 
“I love the staying power … it oxidizes horribly BUT it oxidizes TO my skin tone 🤣” 

These real user experiences highlight how dramatic oxidation can be, but also how it may settle into a better match over time—if you account for it in shade selection.