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Round Lab Birch Juice Moisturizing Tone-up Sun Serum

Ingredients and claims, checked

Product photo of Round Lab Birch Juice Moisturizing Tone-up Sun Serum

Last checked September 22, 2026

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What is it like at a glance?

What the ingredients do

Hydration and UV filter lead, with 4 of 51 ingredients each.

Hydration
4
UV filter
4
Softening
3
Moisture seal
2

Worth knowing

  • Has a fungal-acne trigger
  • On pore-clogging lists

What is this product?

When
Morning

A sunscreen applied as the last morning step, in a 50ml size. It contains Betula Platyphylla Japonica Juice along with Hyaluronic Acid, a moisturizing ingredient.

What's good, and what to watch for?

Good points

  • Contains Betula Platyphylla Japonica Juice 1%

Watch-outs

  • If you clog easily: Isododecane, Octyldodecanol
  • If you get fungal acne: Cetearyl Olivate, Sorbitan Olivate

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.