PibooAll postsIngredients

Round Lab

Round Lab Birch Juice Moisturizing Tone-up Sun Serum

Ingredient analysis and how the ad lines read

Read on 2026-09-22

What is this product?

This is a hydrating tone-up sun serum built on Betula Platyphylla Japonica Juice at a printed 10,230ppm and niacinamide, with a large set of modern UV filters high in the list. Fatty alcohols and olive-derived esters suggest a light serum texture rather than a heavy cream.

What makes it different?

Betula Platyphylla Japonica Juice carries a printed concentration, and niacinamide sits at position 8, supporting a brightening and tone-up angle from the ingredient structure alone. Five UV filters, including both mineral and chemical types, occupy the top of the list. The formula contains no fragrance or essential oils and no drying alcohol, which makes it a reasonable read for sensitive skin. Adenosine near the later half adds an anti-aging note without any disclosed test result to back it.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know 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 ingredient

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

We could not place these in the list above: 아이소도데케인, 옥틸도데칸올