How To4 min read
AM vs PM: Building Two Rituals That Work in Harmony
Syncing your skincare with natural circadian skin rhythms

Dr. Ji-Hye Park
Formulation Director · August 14, 2026

During daylight hours, your skin faces external enemies: ultraviolet radiation, microscopic particulate pollution, and infrared heat. Morning skincare should focus strictly on lightweight antioxidants and broad-spectrum photostable UV shields.
At night, blood flow to the skin surges and cell mitosis accelerates. However, transepidermal water loss also doubles while you sleep. The evening ritual is where you deploy deep nourishing lipid creams, ceramides, and sheet masks to lock in regenerative moisture.
Shop The Story
Formulations Featured in this Guide

Editor’s Pick-13%
Step 06 • 80ml
4.9(198)
Barrier CareCeramide Barrier Repair Cream
Biomimetic 3:1:1 Lipid Matrix Infusion
₩42,000₩48,000
View Details →
Best Seller-13%
Step 07 • 50ml
5.0(428)
Barrier CareDaily Dew Watery Sunscreen SPF50+ PA++++
Zero White Cast Featherlight Photostable UV Gel
₩26,000₩30,000
View Details →