SEIJI / PRODUCTS
Minimum steps. Maximum care.
Only what your skin needs
01 TREATMENT MASK
02 CLEANSING OIL
03 CLEANSING CREAM
SEIJI / 01 · SATURATE. SOOTHE. RESTORE.
Yarrow Mask
BC YARROW / SINGLE USE / 10–15 MIN
IN DEVELOPMENT
SEIJI / 02 · DISSOLVE. EMULSIFY. RINSE.
Yarrow Cleansing Oil
BC YARROW / BOTANICAL CLEANSING OIL
IN DEVELOPMENT
SEIJI / 03 · LATHER. LIFT. RINSE.
Cleansing Cream
BC YARROW / CREAM CLEANSER
IN DEVELOPMENT
RESEARCH RECORD / 2026
Our research focuses on active molecule development, ingredient performance, formulation optimization, and cosmetic delivery systems.
We study how new actives interact with skin biology, how leading Korean formulations achieve high performance, and how ingredient combinations can be optimized for stability, absorption, texture, and efficacy.
The goal is to translate molecular research and advanced cosmetic formulation science into better-performing skincare.
01 FORMULATION
Research into formulation architecture, ingredient interaction, texture, pH, emulsification, stability and delivery.
FORMULATION ARCHITECTURE
TEXTURE + VISCOSITY
pH OPTIMIZATION
EMULSIFICATION
DELIVERY SYSTEMS
02 INGREDIENTS
Evaluation of botanical extracts, cosmetic actives and emerging molecular technologies based on function, compatibility and scientific evidence.
BOTANICAL EXTRACTS
ACTIVE MOLECULES
HUMECTANTS
ANTIOXIDANTS
BARRIER SUPPORT
BC YARROW / ACHILLEA MILLEFOLIUM
03 PRODUCTION + VALIDATION
Translating research into stable, manufacturable cosmetic systems through prototyping, testing and production optimization.
PROTOTYPING
STABILITY
MICROBIOLOGY
PACKAGING COMPATIBILITY
SCALE-UP
RESEARCH → FORMULATION → PROTOTYPE → VALIDATION → PRODUCTION
Future of SEIJI
SEIJI
04 Anti-Aging Cream
IN DEVELOPMENT
A future anti-aging treatment currently progressing through molecular research, safety and formulation development.
LONG-TERM R&D / S-001
+
MOLECULAR RESEARCH
Initial In Vitro Results
CURRENT
SEIJI 04 / CURRENTLY IN DEVELOPMENT / NOT YET AVAILABLE
THE SEIJI JOURNAL