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Your Ultimate Korean Skincare Starter Kit: COSRX, Isntree & SKIN1004 Must-Haves

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If you’re someone who lives for a fresh coat of polish and a little “me time,” there’s a good chance skincare plays a part in your self-care too. After all, what’s the point of the perfect nude mani if your skin is feeling tired or flaky underneath? That glow matters. And that’s where Asian beauty products have quietly earned a loyal following, no fluff, just formulas that work.

Let’s break down a few cult-loved items you can find in the Asian Beauty Warehouse section at Beyond Polish. Beauty supplies from the skin-soothing toners of Isntree, to the barrier-repairing powerhouses from Cosrx, and the gentle, calming formulas by Skin 1004, these K-beauty staples have built a serious fan base. If you’ve never used any of these before, this guide on beauty products will help you figure out what each one does and how they could fit into your everyday routine. 

COSRX — Consistent, Straightforward Skincare That Just Gets It

COSRX Advanced Snail 96 Mucin Power Essence
Sounds a little weird, right? But don’t let the snail part scare you off. This essence uses 96% snail mucin, which is known for helping with hydration, skin repair, and smoothing texture. If your skin feels dull or rough, this lightweight gel-like formula might be what you’re missing. It soaks in fast, doesn’t feel sticky, and leaves a dewy finish.

Corsx - Advanced Snail 96 Mucin Power Essence - Face at Beyond Polish

 

COSRX AHA/BHA Clarifying Treatment Toner
If your skin gets congested or you’ve got a few whiteheads or dry patches hanging around, this one’s worth looking into. It uses a small amount of glycolic (AHA) and salicylic acid (BHA) to gently exfoliate without overdoing it. Spray it on a cotton pad and swipe—it helps prep your skin for anything you apply next.


COSRX BHA Blackhead Power Liquid
This is one of those products people repurchase again and again. It uses betaine salicylate (a gentler version of salicylic acid) to help clear out blackheads and reduce the look of enlarged pores over time. It's ideal for oily or combination skin types who deal with clogged pores regularly.

 

 

COSRX Centella Aqua Soothing Ampoule
If your skin leans sensitive or tends to flare up (think redness or that tight, dry feeling), this ampoule brings in Centella Asiatica—an ingredient known for calming irritation. It has a watery, serum-like texture and works well layered under moisturizer.

COSRX Full Fit Propolis Nourishing Magnet Sheet Mask
This sheet mask is soaked in propolis extract, which helps moisturize and soothe. It’s great for nights when your skin needs extra care, especially if it’s feeling dry or tight. Just smooth it on, relax for 15–20 minutes, and press the leftover serum into your skin.

 

Isntree — Thoughtful Hydration from Head to Toe

Isntree Green Tea Fresh Toner
If your skin gets oily mid-day or breaks out more often than you’d like, this toner can help balance things out. It’s made with green tea extract and a few other plant-based ingredients that feel cooling and fresh on application. It’s lightweight enough for daily use, even for sensitive skin.

 

Isntree Ultra-Low Molecular Hyaluronic Acid Toner
Hyaluronic acid is one of those ingredients that almost every skin type can benefit from, and this formula uses ultra-low molecular weights to absorb better into the skin. Translation? It actually hydrates instead of just sitting on top. You’ll notice plumper, more refreshed skin with regular use.

 

Isntree Green Tea Fresh Emulsion
This is a nice pick for oily or combo skin. It’s a lightweight lotion that hydrates without feeling greasy or heavy. It pairs really well with the Green Tea Toner for a balanced, simple routine that doesn’t overload your skin. 

 

Isntree Hyaluronic Acid Water Essence
This essence is like a tall drink of water for your face. It layers easily under moisturizer and gives that soft, bouncy skin feel that a lot of us are after. Especially good in winter—or if your skin just tends to get dehydrated throughout the day.

 

Skin 1004 — Centella-Centered Skincare That Calms Without Compromise

Skin 1004 Madagascar Centella Toning Toner
This one’s for anyone who needs to reset their skin barrier. It’s calming, lightly exfoliating, and helps your skin feel less reactive. Think of it as a toner that does a little extra, especially if you’re recovering from breakouts or irritation.

Skin 1004 - Madagascar Centella Toning Toner - Face at Beyond Polish

Skin 1004 Madagascar Centella Hyalu-Cica Sleeping Pack
An overnight mask that helps you wake up with smoother, calmer skin. It’s not greasy or sticky, and it plays well with other products. If you’ve been overdoing acids or just need a reset, this can help.

 

Skin 1004 - Madagascar Centella Hyalu-Cica Sleeping Pack - Face at Beyond Polish

Skin 1004 Madagascar Centella Hyalu-Cica Moisture Cream
This is the day cream version of the sleeping pack—lighter but still hydrating. It’s great for daily use, especially under sunscreen and makeup. It helps keep skin soft without overwhelming oily or combination types.

 

Why Does This Matter for Nail Polish Lovers?

Great skin makes your polish pop. Whether you’re going for glazed-donut nails with something like DND Gel - Soft Glow 106 or a bright summer coral like OPI GelColor - My Chihuahua Doesn't Bite Anymore, your hands are going to be front and center. And dry, irritated skin can distract from all that work you put into your mani.

So, if you’re spending time choosing the perfect shade—from Cirque Colors Vice Collection 2025 to Gelish Let’s Roll—it makes sense to treat your skin with that same level of care.

What about you—have you ever tried skincare from COSRX, Isntree, or Skin1004? How do you care for your skin when you're showing off fresh polish? Let us know in the comments.

Have any questions? Leave them down below or email us at HELLO@BEYONDPOLISH.COM
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