Your complete guide to the cult K-Beauty collection that’s taking the global skincare world by storm — straight from Olive Young’s shelves to your skin.
If you’ve spent any time scrolling through K-Beauty TikTok, obsessing over Korean skincare hauls, or studying the routines of your favorite K-pop idols, chances are you’ve already seen ROUND LAB pop up — again and again. And for good reason. This is the brand that cracked Korea’s #1 toner spot, earned a celebrity following from Seoul to Hollywood, and built a devoted global fanbase by doing something deceptively simple: using the purest, most powerful natural ingredients straight from the Korean peninsula.
Now, ROUND LAB has brought its most beloved products together in one beautifully curated package: the ROUND LAB Signature Best Sellers Set, available exclusively at Olive Young — Korea’s #1 health and beauty destination. Whether you’re a K-Beauty newbie building your first routine or a seasoned skincare enthusiast looking to upgrade your regimen, this set is the most efficient way to experience the best of what ROUND LAB has to offer.
Let’s dive deep into why this set has captured hearts worldwide, what makes its ingredients so extraordinary, and exactly how to use it for maximum results.
Why ROUND LAB Is the K-Beauty Brand Everyone Is Talking About
A Brand Born From the Land Itself
Founded in 2017, ROUND LAB isn’t just another skincare brand. It was built on a philosophy: that the Korean peninsula — with its mineral-rich deep seas, ancient birch forests, misty mountains, and windswept coastlines — holds the most potent skincare ingredients on earth. Every product in the ROUND LAB lineup is a love letter to a specific region of Korea, sourced with obsessive care and precision.
The results speak for themselves. The 1025 Dokdo Toner has been voted the best toner in South Korea for three consecutive years across tens of thousands of K-beauty brands. The Birch Juice Moisturizing Sunscreen was ranked #1 out of 100+ sunscreens tested by NBC Select editors. And celebrity endorsements from K-pop stars like Le Sserafim’s Chaewon — as well as Billie Eilish’s own aesthetician — have pushed ROUND LAB firmly into the global spotlight.
All products are:
- Hypoallergenic and clinically tested
- Free from parabens, sulfates, and 19 other potentially harmful substances
- 100% made in Korea
- Eco-conscious — packaged with recycled paper and soy-based ink
This is K-Beauty at its most refined: gentle, effective, transparent, and deeply rooted in nature.
The Star Ingredients: Where Science Meets Korean Nature
Understanding what makes the ROUND LAB Signature Best Sellers Set so extraordinary starts with its ingredients. Each one is sourced from a specific, storied location in Korea — and each carries a unique set of skin-transforming benefits.
1025 Dokdo Deep Sea Water — The Deepest Mineral Water in Beauty History
The “1025” in the iconic Dokdo Toner refers to the depth: 1,025 meters below sea level, where ultra-pure deep sea water is extracted from the pristine waters surrounding the Ulleungdo and Dokdo islands in the East Sea. Formed over thousands of years in complete isolation from surface pollution, this water is extraordinarily rich in natural minerals that deliver multiple skin benefits:
- Promotes blood circulation for a natural, healthy glow
- Strengthens the skin’s immune barrier
- Rejuvenates skin cells at a deep level
- Reduces visible signs of aging
- Maintains the skin’s ideal oil-moisture balance
Combined with panthenol (Vitamin B5), allantoin, betaine, and ROUND LAB’s own patented enzyme HATCHING-EX-07 — which gently dissolves dead skin cells without irritating the skin — the Dokdo Toner delivers hydration, brightening, and soft exfoliation in a single, lightweight step.
Birch Tree Sap from Inje County — The “Forest Water” for Thirsty Skin
Harvested each spring from silver birch trees in the pristine forests of Inje County, South Korea, birch sap is collected through a small, precise hole in the bark — releasing a “white sap” that is extraordinarily rich in Natural Moisturizing Factors (NMF). These include:
- Amino acids — the building blocks of healthy skin protein
- Lactic acid — a gentle AHA that refines skin texture
- Hyaluronic acid — capable of holding 1,000x its weight in water
The result is a moisturizing ingredient that works at the cellular level to deeply hydrate, plump, and protect skin from within. In the Birch Juice Moisturizing Sunscreen, this ingredient is paired with niacinamide, vitamin C derivatives, and advanced UV filters to create a truly multi-functional daily product.
Supporting Cast: Panthenol, Allantoin, Niacinamide & More
The full ROUND LAB ingredient philosophy is about synergy. Each formula layers:
- Panthenol (B5): Deeply moisturizing and barrier-repairing
- Allantoin: Soothing and skin-softening
- Niacinamide: Brightening, pore-minimizing, and anti-inflammatory
- Betaine: Balances moisture and reduces irritation
- Chondrus Crispus (Sea Moss) Extract: A natural hydration booster with antioxidant properties
Together, these ingredients create formulas that are simultaneously powerful and gentle enough for even the most reactive, sensitive skin types.
What’s Inside the ROUND LAB Signature Best Sellers Set
The Signature Best Sellers Set is ROUND LAB’s thoughtfully curated showcase of its most iconic, award-winning essentials. Here’s a closer look at each hero product included:
🌊 ROUND LAB 1025 Dokdo Toner
What it is: Korea’s undefeated #1 toner, water-like in texture and extraordinary in results.
What it does:
- Instantly absorbs into skin without any sticky residue
- Gently exfoliates via enzymatic action (not harsh acids)
- Deeply hydrates with mineral-rich deep sea water
- Soothes redness and calms inflammation
- Brightens dull, uneven skin tone over time
Best for: All skin types, especially sensitive, combination, and acne-prone skin.
Why it’s iconic: This toner has won Korea’s top beauty awards for three consecutive years and is beloved for its rare combination of exfoliation, hydration, and soothing care in one step.
🌿 ROUND LAB Birch Juice Moisturizing Sunscreen SPF 50+ PA++++
What it is: A lightweight, hydrating chemical sunscreen that doubles as a daily moisturizer.
What it does:
- Provides broad-spectrum UVA and UVB protection (SPF 50+ PA++++)
- Leaves zero white cast — truly invisible on all skin tones
- Deeply moisturizes with birch sap, hyaluronic acid, and amino acids
- Brightens with niacinamide and vitamin C derivatives
- Non-greasy, non-pore-clogging, and safe for the eye area
Best for: All skin types, including sensitive and acne-prone. Makeup-friendly and ideal for daily wear.
Why it’s iconic: Ranked #1 out of 100+ sunscreens by NBC Select editors and endorsed by Billie Eilish’s aesthetician. This is the sunscreen that converted thousands of sunscreen-haters worldwide.
Pro Tip: Depending on the specific set configuration available at Olive Young, additional ROUND LAB essentials — such as the 1025 Dokdo Foam Cleanser, Birch Juice Moisturizing Cream, or sheet masks — may also be included. Always check the product listing for the most up-to-date contents.
Who Is This Set Perfect For?
The ROUND LAB Signature Best Sellers Set is the ideal choice if you are:
- A K-Beauty beginner who wants a simple, foolproof routine backed by real results
- Someone with sensitive skin looking for clinically tested, gentle formulas
- A skincare minimalist who wants multi-tasking products that do more with fewer steps
- A gift-giver — this beautifully packaged set makes a stunning gift for any beauty lover
- A deal-seeker — sets offer significantly better value than buying each product individually
- A current ROUND LAB fan who wants to try new products from the range
How to Use the ROUND LAB Signature Best Sellers Set: Your Step-by-Step Routine
Getting the most out of this set is straightforward — and that’s part of the beauty of ROUND LAB. Here is how to build an effective morning and evening routine using these products.
🌅 Morning Routine
Step 1: Cleanse If a cleanser is included in your set (such as the 1025 Dokdo Foam Cleanser or Birch Juice Moisturizing Cleanser), use it as your first step to gently remove overnight sebum. Massage with a small amount and lukewarm water, then rinse thoroughly.
Step 2: Apply the 1025 Dokdo Toner After cleansing and while your skin is still slightly damp, dispense 1–2 pumps (or pour onto a cotton pad) and gently press the toner into your face and neck. Do not rub. Pat lightly until fully absorbed. Allow 20–30 seconds for it to sink in before the next step. For an extra hydration boost, apply 2–3 thin layers using the “7-skin method” — a beloved Korean technique of layering toner multiple times.
Step 3: Apply Serums or Ampoules (Optional) If you have other serums in your routine, this is the moment to apply them, always working from thinnest to thickest texture.
Step 4: Birch Juice Moisturizing Sunscreen (Final Step) As the last step of your morning routine, apply a generous amount of the Birch Juice Moisturizing Sunscreen — approximately a nickel-sized amount for the face and neck. Apply 20–30 minutes before sun exposure for full protection. Its lightweight, essence-like texture means it layers beautifully under makeup or wears clean on its own.
Important: Reapply your sunscreen every two hours when outdoors for continuous protection.
🌙 Evening Routine
Step 1: Double Cleanse In the evening, start with the 1025 Dokdo Cleansing Oil (if included) to remove sunscreen and makeup, followed by the foam or gel cleanser for a thorough second cleanse.
Step 2: 1025 Dokdo Toner Apply the toner the same way as in your morning routine. Evening application is especially powerful because your skin is in repair mode overnight — the mineral-rich formula supports cellular renewal while you sleep.
Step 3: Moisturizer Follow with a cream or lotion to seal in all the hydration from your toner.
💡 Tips for Best Results
- Consistency is key. With gentle K-Beauty formulas like these, results build over 4–6 weeks of daily use.
- Layer thinnest to thickest. Always apply the toner before heavier creams.
- Don’t skip sunscreen, even on cloudy days — UV damage is the #1 cause of premature aging.
- Patch test any new product on your inner wrist or behind your ear before full facial use.
- Store in a cool, dry place away from direct sunlight for optimal freshness.
Ready to Start Your ROUND LAB Journey?
The ROUND LAB Signature Best Sellers Set is one of the best ways to experience authentic, award-winning K-Beauty without the guesswork. Whether you’re treating yourself or gifting someone special, this set delivers the full ROUND LAB experience in one elegant, value-packed package — curated directly from Olive Young, Korea’s most trusted beauty retailer.
At WEMMERCE, we handpick only the best of Olive Young’s bestselling K-Beauty products and ship them directly to your door. You can shop the ROUND LAB Signature Best Sellers Set and explore our full curated ROUND LAB collection right now.
👉 [Shop the ROUND LAB Signature Best Sellers Set — View Details & Order Here: Insert Product Link Here]
Don’t miss out — this set is a fan favorite and sells out quickly. Grab yours today and discover why millions of skin-conscious beauty lovers around the world have made ROUND LAB their everyday essential. ✨
Frequently Asked Questions (FAQ)
Q1: Is the ROUND LAB Signature Best Sellers Set suitable for sensitive skin?
Absolutely. ROUND LAB was designed with sensitive skin in mind. All products in the range are hypoallergenic, clinically tested, and free from 19 commonly irritating substances including parabens and sulfates. The 1025 Dokdo Toner uses a patented enzymatic exfoliation system that is far gentler than acid-based exfoliants, making it safe for reactive, sensitive, and even acne-prone skin. The sunscreen has also completed low-irritation testing and earned German Dermatest certification. As with any new skincare product, we recommend doing a patch test before full use.
Q2: Can I use the ROUND LAB Birch Juice Moisturizing Sunscreen as my only moisturizer?
Yes — and this is one of the most popular ways to use it! The Birch Juice Moisturizing Sunscreen is formulated with birch sap, hyaluronic acid, amino acids, and niacinamide, making it hydrating enough to serve as a lightweight moisturizer and SPF in a single step. For those with dry skin, pairing it with a dedicated cream underneath is recommended. For oily and combination skin types, it often works beautifully as a standalone final step in the morning routine.
Q3: Where do ROUND LAB products sit within the Olive Young bestseller rankings?
ROUND LAB is one of the most celebrated brands on Olive Young’s platform. The 1025 Dokdo Toner has held the #1 rank in its toner category in South Korea for three consecutive years. The Birch Juice Moisturizing Sunscreen has topped sunscreen rankings both in Korea and internationally, including a #1 ranking from NBC Select editors after testing over 100 sunscreens. The brand’s consistent performance across multiple product categories is what earned it the distinction of having a dedicated “Signature Best Sellers Set” on Olive Young Global — a testament to its unrivaled popularity with Korean and international shoppers alike.
Written by the WEMMERCE K-Beauty Team — your trusted source for the best of Olive Young, delivered worldwide.
Disclaimer: Product contents may vary. Always refer to the official product listing at the time of purchase for the most accurate set details.