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ROUND LAB Birch Juice Ampoule

라운드랩 자작나무 수분 앰플

Ingredients and claims, checked

Product photo of ROUND LAB Birch Juice Ampoule

Last checked September 22, 2026

Mid-range for serums
Other stores (1)

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What is it like at a glance?

What the ingredients do

Hydration leads, with 12 of 39 ingredients.

Hydration
12
Moisture seal
1
Skin protection
1
Cleansing
1

By skin type

  • DryUse with care
  • OilyGood fit
  • CombinationGood fit
  • SensitiveGood fit

Piboo’s rating from user reports.

Worth knowing

  • Has a fungal-acne trigger

What is this product?

What to expect
It's made for better hydration.
When
Morning and evening

A watery, lightweight hydrating serum made with birch sap. It's not sticky. It comes in a 50 ml size.

Who is it for?

Good for

  • Dehydrated skin
  • Sensitive skin
  • Skin that doesn't get along with acids (AHA, BHA)

What to watch for?

Watch-outs

  • If you get fungal acne: Lactobacillus Ferment

What makes it different?

It contains ten forms of hyaluronic acid.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Tap a name to read about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary.

Key ingredientWorth a closer look

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

What the claims add up to

Only partly backed:
better hydration (amount unknown)
Tests passed:
skin irritation
See each claim, checked (41)

Claims, checked

  • Non-drying moisturization with glyceryl glucoside that opens moisture pathways.plausible, not tested
  • [ Patent: US 8,288,353 B2 ]plausible, not tested
  • Refreshing and cool moisture layer texture.plausible, not tested
  • For forest protection, it was produced using soy ink on FSC-certified single packaging.plausible, not tested
  • 7-second charge, 3-day lasting moisture keep! Birch ampoulepartly backed
  • It's not moisture that stays for a moment. It's moisture that fills deeply for a long time.partly backed
  • 72-hour moisture lasting, keeping moist for a long time.partly backed
  • 72-hour moisture retention effect.partly backed
  • 4-fold moisturizing layered effect.partly backed
  • Containing the refreshing moisture of Inje birch trees, it keeps skin moist all day.partly backed
  • 10 types of hyaluronic acid charge moisture densely from surface to inner layers.partly backed
  • 10 types of hyaluronic acid, composed of high/medium/low molecular weight, fill moisture from the skin's surface to inner layers, caring for skin that doesn't dry out.partly backed
  • Aquaxyl, a patented moisturizing ingredient that combines xylitol and glucose derived from birch and beech, fills skin with moisture and prevents moisture loss.partly backed
  • Smooths rough skin texture caused by dryness.partly backed
  • Improves rough texture caused by dryness.partly backed
  • Improves skin transparency on the entire face (7 POINT).partly backed
  • The refreshing watery texture is absorbed quickly and densely, and even with multiple layers, it delivers a fresh and moist finish without weight or stickiness.partly backed
  • Sensitive skin irritation test.partly backed
  • The average skin response was 0.00, and it was determined to be non-irritating per the assessment criteria.partly backed
  • German Dermatest.partly backed
  • No relevant skin reactions were detected in the test area following a single product application.partly backed
  • Product effect proven by 100% satisfactionoverstated
  • 4-layer moisturizing layering from the outside to the inside.overstated
  • Glyceryl glucoside, a key ingredient of resurrection plant, activates *aquaporin, the water pathway inside the skin, promoting powerful moisture supply.overstated
  • Powerful moisturizing effect from a patented moisture ingredient.overstated
  • It seems dry skin has become moist.no supporting source found
  • It seems skin becomes moist from the inside and is filled with moisture.no supporting source found
  • It seems to be absorbed quickly as soon as applied to the skin.no supporting source found
  • It seems the rough skin texture due to dryness has become smooth.no supporting source found
  • It seems skin has become clear and transparent.no supporting source found
  • The secret to absorbency: FLEX-SOME™no supporting source found
  • By applying particle-softening technology that makes formulation particles soft and flexible, it helps them be absorbed into the skin more densely.no supporting source found
  • Inje birch tree sap, which grew holding the refreshing energy of cool breezes, is rich in amino acids and minerals, and provides moisture to dry skin to maintain moist skin.no supporting source found
  • Clear and translucent as if you've just washed your face.no supporting source found
  • #MoistureSoothing #RefreshingMoistAmpoulenothing specific to check
  • When skin concerns increase due to lack of moisture, it's time for a Birch ampoule!nothing specific to check
  • The key to moisture charging is absorbency. Introducing the absorption secret of Birch ampoule.nothing specific to check
  • 'Resurrection plant' with tenacious vitality that thrives even in arid deserts.nothing specific to check
  • Feel your skin transformed by moisture!nothing specific to check
  • Because it's a cosmetic that comes into direct contact with the skin.nothing specific to check
  • Round Lab creates cosmetics that sensitive skin can use with peace of mind.nothing specific to check

We quote each claim exactly as the brand published it, then check it against the ingredient list and the brand's own documents.

How we check claims

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