Round Lab Birch Juice Mild-Up UV Lock Sunscreen
Round Lab Birch Juice Mild-Up UV Lock Sunscreen (50 ml) is a sunscreen for anyone who wants a lighter, cosmetically elegant sunscreen texture, used last.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Normal skinDry skinCombination skinOily skin
- Helps with
- The final leave-on step of a morning routineA lighter, cosmetically elegant texture than many US sunscreen formulasWear under makeup without pilling
In stock. Ships from our California warehouse, dispatched within 2 business days
You’re $100.00 away from free US shipping.
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- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
Round Lab Birch Juice Mild-Up UV Lock Sunscreen is built as a sunscreen, so its texture and finish are designed around one specific place in a routine rather than several. Round Lab, TIRTIR and Torriden formulate this kind of sunscreen to feel consistent with the rest of the brand's line, so the texture and absorption speed match what the format is meant to do. The texture is built for use last, as the final step of your morning routine, before makeup, which is why it behaves differently on skin than a product meant for a different point in a routine. This is the Korean-market formula of the birch juice mild-up uv lock sunscreen, the version sold on shelves in Korea rather than a formula reworked for a different market.
Key benefits
- Birch Juice Mild-Up UV Lock Sunscreen is Round Lab's sunscreen, sourced for the Korean market rather than reformulated for US shelves.
- Carries Zinc Oxide, which is a mineral UV filter, the reflective, physical-sunscreen ingredient in this formula.
- Carries Sodium Hyaluronate, which is a salt-form humectant from the hyaluronan family, smaller and faster-absorbing than the parent molecule, and a staple of Korean hydration formulas.
- Carries Hyaluronic Acid, which is the water-binding polymer most Korean hydration formulas are built around.
- Ships with the Korean-market barcode and batch code intact, the same box sold on Korean shelves rather than a US repack.
- Suited to shoppers targeting dehydration and a compromised moisture barrier.
Key actives
Zinc Oxide
Zinc Oxide is a mineral UV filter, the reflective, physical-sunscreen ingredient in this formula. It sits at this position on the ingredient list, which in Korean cosmetic labeling reflects concentration order rather than a fixed percentage.
Sodium Hyaluronate
Sodium Hyaluronate is a salt-form humectant from the hyaluronan family, smaller and faster-absorbing than the parent molecule, and a staple of Korean hydration formulas. It sits at this position on the ingredient list, which in Korean cosmetic labeling reflects concentration order rather than a fixed percentage.
Hyaluronic Acid
Hyaluronic Acid is the water-binding polymer most Korean hydration formulas are built around. It sits at this position on the ingredient list, which in Korean cosmetic labeling reflects concentration order rather than a fixed percentage.
Artemisia Annua Extract
Artemisia Annua Extract is mugwort (Artemisia) extract, a calming botanical long used in Korean folk skincare and now a mainstay of soothing formulas. It sits at this position on the ingredient list, which in Korean cosmetic labeling reflects concentration order rather than a fixed percentage.
Pinus Sylvestris Leaf Oil
Pinus Sylvestris Leaf Oil is pine extract, the calming conifer note Round Lab's Pine-line formulas are built around. It sits at this position on the ingredient list, which in Korean cosmetic labeling reflects concentration order rather than a fixed percentage.
Is this the same formula sold in Korea, or a version made for the US market?
This is the Korean-market formula, the same one sold on shelves in Korea, not a separate version reformulated for US retail. The pack you open matches what a shopper in Seoul buys.
Where does this step go in a routine?
It belongs last, as the final step of your morning routine, before makeup. Placing it earlier or later than that changes how it feels going on and how well the steps after it absorb, so keeping it in that order is worth doing even on a simplified routine.
Can I use this if my skin runs sensitive?
This sunscreen is formulated with skin types like normal skin, dry skin in mind, but any new product is worth a patch test first if your skin reacts easily. A short patch test on the inside of your arm or behind an ear is worth doing with any new product before it goes on your face, and that goes for sensitive skin most of all.
How long before I will know if this is right for my skin?
Give it a full week or two of consistent use before judging, since a single use rarely tells you much either way. Watch for how skin feels rather than for any specific number, and stop use if you notice ongoing irritation.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Payment and security
We accept
How to use
- Use the Birch Juice Mild-Up UV Lock Sunscreen as the last step of the morning routine, over moisturizer and under makeup.
- Apply it at the last stage of skincare routine 15 minutes before heading out. Gently massage for better absorption.
- Nothing skincare goes over it. It is the last thing on in the morning, and it is never mixed into the moisturizer underneath it.
- Every morning, and again through the day as the instruction on the pack directs. Do not stir it into your moisturizer to save a step.
Worth knowing
- Let it absorb fully before layering makeup over it, since a still-wet sunscreen is what causes pilling underneath foundation.
Reviews
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Korean-market original
Birch Juice Mild-Up UV Lock Sunscreen, Round Lab's sunscreen in its authentic Korean-market formula.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
Hyaluronic acid helps bind water to collagen, which traps water in the skin. That helps make the skin more plump and full-looking.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic Additionally, it has been shown to improve dry skin in those with atopic dermatitis. It also can be good for those with acne-prone skin because of the antibacterial and anti-inflammatory benefits.
Marisa K. Garshick, MDDermatologist, The Zoe Report
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