Round Lab
Birch Juice Moisturizing Toner
Round Lab Birch Juice Moisturizing Toner (300 ml) is a toner for anyone who wants the first watery layer of a Korean routine, used first among your leave-on steps.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Normal skinDry skinCombination skinSkin that runs sensitive
- Helps with
- A watery first layer of hydration right after cleansingSkin that feels tight the moment washing is donePrepping skin so the next step spreads more evenly
Sold out.
Tell us where to send it
One email, the moment this exact unit is back in stock. Not a newsletter and not a sequence, and your address comes off the list the second it is sent.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
Round Lab Birch Juice Moisturizing Toner is built as a toner, so its texture and finish are designed around one specific place in a routine rather than several. The formula's own ingredient list carries Panthenol (Pro-Vitamin B5), Hyaluronic Acid, Sodium Hyaluronate among its named ingredients, placed at a level consistent with a toner rather than a spot treatment. The texture is built for use first among your leave-on steps, right after cleansing and before any essence, serum or moisturizer, 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 moisturizing toner, the version sold on shelves in Korea rather than a formula reworked for a different market.
Key benefits
- Birch sap is declared at 10,000 ppm and is sixth on the list
- Sodium hyaluronate and hyaluronic acid follow immediately after, at tenth and eleventh
- Panthenol and dipotassium glycyrrhizate keep daily cotton-pad use calm
- Ascorbic acid closes the list, a mild antioxidant note rather than a vitamin C treatment
- 300 ml, sized for cotton-pad and toner-pack habits
- The first step in the original Korean-market Birch Juice line, the same list Round Lab sells in Seoul
Key actives
Panthenol (Pro-Vitamin B5)
A humectant and skin-conditioning agent that helps the formula feel soft and comfortable rather than tight once it has absorbed, a staple of Korean toners and creams.
Hyaluronic Acid
A water-binding humectant that helps the surface feel plumper and less tight through the day, sitting on skin rather than sinking below it.
Sodium Hyaluronate
A smaller-molecule form of hyaluronic acid that spreads easily and helps the finish feel dewy rather than heavy.
Birch Sap (Betula Alba Juice)
Birch tree sap, carried at a named concentration as the hydrating backbone of this particular Round Lab formula rather than a background botanical.
Ascorbic Acid (Vitamin C)
Direct vitamin C, included in this formula's brightening blend and best paired with sunscreen since it can lose potency with light exposure.
Birch Juice Moisturizing Toner
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 first among your leave-on steps, right after cleansing and before any essence, serum or moisturizer. 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 toner 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 it right after cleansing, morning and evening, while the skin is still slightly damp.
- Two or three palmfuls pressed in with flat hands, or one soaked cotton pad swept over the face.
- Layer a second and a third pass on a dry day, waiting only a few seconds between them.
- Follow with a serum and a moisturizer. Do not stop at the toner and expect it to hold water on its own.
Worth knowing
- Pat the toner in with palms rather than dragging a cotton pad hard across skin, since friction rather than the formula is what irritates sensitive skin.
- Layer a serum or moisturizer over it while skin is still slightly damp, since a toner alone is not built to be the last step.
Reviews
No reviews yet. Tell us how much you love the product!
Write Reviews (opens in a new tab)We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
Round Lab, Korean-market original
Hydrating toner, 300 ml, with Birch Sap, Hyaluronic Acid and Panthenol.
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.
Pantothenol is a common ingredient in skin care and hair products I recommend, particularly for people who are prone to dryness.
Taylor Bullock, MDDermatology resident, Cleveland Clinic 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
1 more professional perspective
It helps to reduce inflammation of the skin and retain moisture to maintain the barrier function of skin.
Dr. Jaishree SharadDermatologist, Femina
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.