Okay so my friend just asked me about that YUNJAC base everyone’s been talking about at Olive Young, and honestly? I’ve been seeing it EVERYWHERE in Seoul lately. It’s one of those products that quietly became a bestseller without all the flashy marketing, which usually means it actually works π
YUNJAC Skin Perfecting Protective Base Prep 25ml (Set/Single)
β¨ Best for: All skin types, especially combo & oily
β± Longevity: 8-12 hours wear
π Repurchase rate: High
Why Koreans Love This

Korean makeup artists have this saying: “μ’μ λ² μ΄μ€λ νμ₯μ 50%” (a good base is 50% of your makeup). And YUNJAC’s base has become that reliable first step for SO many people here.
What makes it different is how it creates this smooth canvas without feeling heavy or greasy. You know how some primers just sit on top of your skin? This one actually absorbs and works WITH your skin texture instead of fighting it.
What Real Buyers Are Saying
“I have combination skin and this keeps my T-zone from getting oily while not making my cheeks look dry. My foundation literally stays put all day without touch-ups.” β verified buyer
“Finally found a base that doesn’t pill or separate when I layer skincare underneath. The texture is so lightweight but it actually blurs my pores without feeling silicone-y.” β verified buyer

The reviews are pretty consistent β people love how it extends their makeup wear time without that heavy primer feeling. Plus it plays nicely with both Korean cushions and Western foundations.
| Feature | Details |
|---|---|
| Skin Type | All types, especially combination & oily-prone |
| Finish | Natural matte, pore-blurring |
| Longevity | 8-12 hours makeup hold |
| Best For | Oil control, extending makeup wear, smoothing texture |
π Mina’s Ingredient Note
I actually checked the formulation and it uses a specific type of silica that’s different from typical primers β it absorbs sebum throughout the day rather than just creating a film on top. Honestly, this explains why people say their makeup doesn’t get oily even after hours. Worth checking if you’re sensitive to dimethicone though, as it does contain some silicone derivatives for that smooth application.
β Mina, from Seoul β¨
Who Should (and Shouldn’t) Buy This

Here’s the honest truth about who this works for (and who might want to skip it):
π Is This For You?
β You have combination or oily skin that eats through makeup by afternoon
β You want a base that actually controls oil without looking cakey or dry
β You’re looking for something that works under both Korean and Western makeup
β You have very dry skin and prefer dewy, glowy finishes (this might be too mattifying)
β You’re silicone-sensitive and prefer 100% silicone-free formulas
How It Compares to Other Bestsellers
| Product | Best For | Finish | Longevity | Buy |
|---|---|---|---|---|
| HERA Black Cushion Set | Full coverage foundation | Radiant, buildable | 8-10 hours | Shop |
| HERA Sensual Nude Gloss | Lip gloss/color | Glossy, hydrating | 4-6 hours | Shop |
| CLIO Pro Eye Palette | Eyeshadow palette | Matte to shimmer | 10+ hours | Shop |
If you’re building your Korean makeup routine, this base is honestly one of those products that makes everything else work better. It’s not flashy, but it does exactly what it promises β and sometimes that’s exactly what you need π
π Shop on Olive Young Global β
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