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Round Lab Review: A Korean Staple, Best Sellers
By Retail Verdict Editorial · Last Updated August 2026Â
A full look at Round Lab, the Korean brand behind the 1025 Dokdo and Birch Tree lines, what it’s known for, what’s in the formulas, and its three best sellers.
Who Is Round Lab?
If you have ever scrolled Olive Young or K-beauty TikTok in the past few years, you have definitely seen this brand before. Selling millions of units a year, Round Lab has made a name for itself in Korea, and is now making it big in the West. Inspired by the Korean Peninsula’s nature, this brand embodies the best of Korean ingredients and natural resources. With their 1025 Dokdo and Birch Tree lines, it has become a fixture on shelves across the country. Since 2017, Round Lab skincare has established itself as a must-have for any K-beauty lover, with gentle formulas and prices that mostly stay under $30.
1025 Dokdo Line
Named for October 25th, 1900, the date the Korean Empire issued Imperial Decree No. 41, placing Dokdo under the administration of Uldo County. Korea still marks the anniversary as Dokdo Day, and Round Lab donates a portion of the line’s profits to a school on Ulleungdo. The brand draws its formulas from the waters around the Ulleungdo and Dokdo islands, at the far eastern edge of the peninsula. The superstar ingredient is Ulleungdo Deep Sea Water, collected from 5,000 feet below the surface of the East Sea. Containing over 90 minerals, this rich, clean water helps skin hold its moisture balance and supports a healthy barrier.
Birch Tree LineÂ
Harvested in early spring, before the leaves come in, birch sap is nature’s own moisturizer. The brand taps the silver birches of Inje for a sap dense with amino acids, minerals and antioxidants, then builds it into the Birch Juice sunscreen and moisturizing cream. It is the hydrating half of the range, and the reason dry, dehydrated skin gravitates here.
Best for Everyday Sun Protection: Birch Moisturizing Sunscreen UVLock SPF 45+
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Round Lab
Birch Moisturizing Sunscreen UVLock SPF 45+
First up is the sunscreen that made Round Lab famous, still its biggest seller with more than 20 million sold worldwide, according to the brand. If sunscreen has always felt like a trade-off between protection and comfort, this is the one that settles the argument. Avobenzone, homosalate and octisalate do the UV work at broad spectrum SPF 45+, while birch sap harvested from the silver birches of Inje, dense with amino acids, minerals and antioxidants, keeps skin hydrated instead of parched. Hyaluronic acid and glyceryl glucoside limit water loss through the day, and niacinamide supports the barrier while evening out tone. The texture lands closer to a light lotion than a sunscreen, absorbing clear on every skin tone with a soft herbal scent of chamomile and pine.
Benefits:
- Broad spectrum SPF 45+ protection against UVA and UVB rays
- No white cast on any skin tone, and no pilling under makeup
- Hydration that holds through the day, so a separate moisturizer is optional
- Formulated for sensitive and easily irritated skin
Key ingredients:
- Avobenzone, homosalate and octisalate the three filters doing the UV work
- Birch sap rich in amino acids and minerals that help skin hold water
- Hyaluronic acid and glyceryl glucoside humectants that limit moisture loss
- Niacinamide well studied for barrier support and evenness of tone
How to use:
Apply liberally and evenly as the last step of your morning routine, 15 minutes before sun exposure, and reapply at least every two hours outdoors.
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Best for Dry, Dehydrated Skin: Birch Moisturizing Cream
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Round Lab
Birch Moisturizing Cream
Next is the Birch Moisturizing Cream, the hydration workhorse of the Birch Tree line. If you associate serious hydration with a heavy, occlusive finish, this one makes the opposite case. Birch sap sits at 10,000 ppm, carrying 17 amino acids alongside the minerals, vitamins and antioxidants that help skin hold onto water rather than lose it. Jojoba esters improve moisture retention and reinforce the barrier, panthenol softens, and sodium hyaluronate and glyceryl glucoside pull water into the upper layers and keep it there. The texture is the real surprise: whipped, almost weightless, and absorbed in seconds, with no scent and no film left behind. Round Lab recommends it as the final step of a routine, spread evenly as though sealing in everything underneath.
Benefits:
- Long-lasting hydration for dehydrated or barrier-stressed skin
- Helps form a moisture-packed barrier that limits water loss through the day
- Fast-absorbing, non-greasy finish that suits combination skin too
- Unscented, so it layers cleanly under sunscreen without pilling
Key ingredients:
- Birch sap at 10,000 ppm the line’s hero, carrying 17 amino acids plus minerals, vitamins and antioxidants
- Jojoba esters improve moisture retention and reinforce the skin’s own barrier
- Panthenol boosts hydration and softens
- Sodium hyaluronate and hyaluronic acid draw water into the upper layers
- Glyceryl glucoside a humectant that helps skin resist dehydration
How to use: Smooth over slightly damp skin as the last step of your evening routine, or before sunscreen in the morning. Press in gently rather than rubbing, and use more on dry patches.
Best for Gentle Daily Cleansing: 1025 Dokdo Cleanser
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Round Lab
1025 Dokdo Cleanser
Last is the 1025 Dokdo Cleanser, the brand’s best-selling face wash with more than five million sold worldwide, and the cheapest way into the range at $15. If you’ve come to accept that tight, squeaky feeling as proof a cleanser is working, this one will reset your expectations. It sits at pH 5.0 to 6.0, close to skin’s own surface, and lathers into a dense, creamy foam that lifts sebum, grime and ultra-fine dust without stripping. Mineral-rich deep sea water drawn from off Ulleungdo does the balancing work, while a triple hyaluronic acid blend hydrates at three molecular weights, the smallest of them travelling furthest into the skin. Ceramide NP reinforces the lipid barrier, and panthenol and allantoin calm anything reactive.
Benefits:
- Slightly acidic formula that purifies without over-drying
- Dense, rich foam that lifts excess sebum, grime and ultra-fine dust
- Helps maintain a healthy moisture balance, so skin feels comfortable rather than tight
- Fragrance-free and a long-standing favourite with sensitive skin
Key ingredients:
- Ulleungdo deep sea water a high concentration of pure minerals that supports the skin’s moisture balance
- Hyaluronic acid pulls water into the upper layers for a smoother, dewier finish
- Hydrolyzed hyaluronic acid a smaller molecule that travels further into the skin
- Ceramide NP reinforces the natural lipid barrier against dryness
- Panthenol and allantoin soothing agents for reactive, easily irritated skin
How to use:
Add water to create a creamy foam, massage thoroughly over the face, then rinse away with lukewarm water.
How to Build a Round Lab Routine
Match the Line to Your Skin Type
The shorthand is straightforward. The 1025 Dokdo line, built on mineral-rich deep sea water, leans lighter and suits combination to oily skin. The Birch Tree line is the hydrating one, better for dry, dehydrated or barrier-stressed skin. If you are oily and want a moisturizer, the Dokdo cream is the more logical pick than the Birch cream reviewed above.
Ingredients Worth Paying Attention To
- Birch sap: a humectant-rich botanical that holds water in the upper layers of skin. Comfortable and low-risk, but not an active.
- Ceramide NP: supports the skin’s lipid barrier. Most useful in leave-on products, less so in a rinse-off cleanser.
- Niacinamide: well-studied for barrier support and evenness of tone. It appears in the sunscreen, which is a nice bonus rather than a reason to buy.
- Cleanser pH: a slightly acidic wash is gentler on the barrier than an alkaline one. This is one of the few cleanser specs genuinely worth checking.
What a Realistic Timeline Looks Like
Hydration is fast skin feels more comfortable within a few days of switching to a gentler cleanser and a decent moisturizer. Anything involving tone, texture or the look of pores takes considerably longer, on the order of eight to twelve weeks, because that is roughly how long visible surface change needs.Â
Round Lab FAQ
Is Round Lab good for sensitive skin?
Yes, and it’s what the brand is best known for. Most of the core range is fragrance-free, slightly acidic and free of common irritants like essential-oil blends and drying alcohols. Sensitive-skin shoppers are the brand’s most loyal audience for exactly that reason. Patch test anything new, as always.
Does Round Lab sunscreen leave a white cast?
No. The Birch Moisturizing Sunscreen uses chemical filters rather than zinc oxide or titanium dioxide, so it absorbs clear across every skin tone. It’s the single most cited reason people repurchase it, and the main thing that made the product go viral in the first place.
Is the 1025 Dokdo Cleanser good for oily skin?
It’s a great fit for oily and combination skin. The formula lifts excess sebum without the harsh sulfates that trigger rebound oiliness, and its pH of 5.0 to 6.0 keeps the barrier intact. You get a proper clean without the tight, stripped feeling afterwards.
How long does Round Lab skincare take to work?
Comfort and hydration improve fast, usually within a week. Visible changes to tone, texture and the look of pores build over eight to twelve weeks of daily use. Consistency is what does the work here, and the formulas are gentle enough to use twice a day indefinitely.
Can you use all three Round Lab best sellers together?
Yes, and they’re designed to layer. Cleanse with the Dokdo Cleanser, apply the Birch Moisturizing Cream while skin is still slightly damp, then finish with the Birch sunscreen every morning. Nothing in the three conflicts, so there’s no waiting time between steps.
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