Round Lab Birch Juice Moisturizing Cleanser
Round Lab Birch Juice Moisturizing Cleanser is a daily foaming cleanser for skin that feels tight and dehydrated by midday, used as your cleansing step.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Dry skinDehydrated skinNormal skinCombination skin
- Helps with
- Everyday hydrationA plumper looking surfaceComfort after cleansing
In stock. Ships from our California warehouse, dispatched within 2 business days
You’re $100.00 away from free US shipping.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
A foaming cleanser is a rinse-off step, so nothing about it stays on the skin and it is judged by how the face feels a minute after rinsing. Worked into a lather in wet hands, it lifts the day's oil and grime off the surface and takes it away with the rinse water. Skin holding enough water in its top layer reflects light more evenly and feels supple, and that is the whole of what a hydrating step changes. A cleansing water wipes off without rinsing, while a foam needs running water and does a more thorough job of it. The result you can judge yourself is whether your skin still feels comfortable hours after you finish your routine.
Key benefits
- Birch Juice Moisturizing Cleanser is Round Lab's cleanser, sourced for the Korean market rather than reformulated for US shelves.
- Carries Betula Platyphylla Japonica Juice, which is Round Lab's signature birch sap, the brand's own moisture base drawn from Korean white birch trees.
- 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
Glycerin
Glycerin is the workhorse humectant of skincare: it draws water into the top of the surface and keeps a formula from feeling tight as it settles.
Betula Platyphylla Japonica Juice
Birch Sap stands in for most of the water in this formula, which is the whole idea of the line: the hydrating base is a plant juice rather than plain water.
Sodium Hyaluronate
Sodium Hyaluronate is the salt form of hyaluronic acid, used because it holds a large amount of water at the surface and spreads more evenly than the acid itself.
Hyaluronic Acid
Hyaluronic Acid is here as a second water binding form alongside its salt, which is a common Korean approach to spreading the effect across different molecular sizes.
What is Birch Juice Moisturizing Cleanser?
It is a daily foaming cleanser from Round Lab, made for skin that feels tight by the afternoon, whatever its oil level, and anyone whose routine leaves it thirsty. It goes first, as your cleansing step, before any leave-on product. The result you can judge yourself is whether your skin still feels comfortable hours after you finish your routine.
Where does Birch Juice Moisturizing Cleanser go in my routine?
It goes first, as your cleansing step, before any leave-on product. In practice: Lather a small amount in wet hands, massage over a wet face for about thirty seconds and rinse with lukewarm water. Applying it out of that order is the usual reason a step seems to do nothing.
Is Birch Juice Moisturizing Cleanser right for my skin type?
It is aimed at skin that feels tight by the afternoon, whatever its oil level, and anyone whose routine leaves it thirsty. The skin types we would put first are dry skin, dehydrated skin and normal skin. Dehydration and dryness are different problems, and oily skin can be dehydrated, which is why this suits more skin types than a rich cream would.
Is it too stripping to use morning and night?
For most skin, no, and the test is how your face feels sixty seconds after rinsing rather than immediately. Comfortable is right, squeaky and tight is too much. If mornings leave you tight, rinse with water only when you wake and keep this for the evening.
Is this Birch Juice Moisturizing Cleanser the authentic Korean-market formula?
Yes. We stock the Round Lab Korean-market formula rather than a version reformulated for US shelves. The tube you open is the 150ml one sold on Korean shelves, with Korean-primary packaging and an intact barcode you can check yourself.
- 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
- Wet the face with lukewarm water, since a lather on dry skin drags rather than glides.
- Work a small amount into a lather in your palms first, then massage it over the face for about thirty seconds.
- Rinse thoroughly, especially along the jaw and hairline where cleanser gets left behind.
- Do not use hot water or scrub at the skin, and do not wait for the face to dry before your next step.
Worth knowing
- Patch test on a small area first if your skin reacts easily to new products.
- Apply it on damp rather than dry skin, since a hydrating step has more to hold on to that way.
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
Korean-market original
A daily foaming cleanser, 150ml, for skin that feels tight and dehydrated by midday. Authentic Round Lab 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.
It helps to reduce inflammation of the skin and retain moisture to maintain the barrier function of skin.
Dr. Jaishree SharadDermatologist, Femina 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
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.










