Dr. Kasia
Wezowski
For more than a dozen years, Dr. Kasia Wezowski searched for skincare that could genuinely meet her expectations. She tried hundreds of creams, studied ingredient lists, compared formulations and closely observed how different products and combinations affected her own skin.
She wasn't simply looking for another luxurious cream. She wanted to understand what actually made a difference: which ingredients worked, how they worked together, and what happened when they were combined differently.
Over the years, this became a personal research project. With a background in psychology and a PhD from the University of Bristol, Dr. Kasia approached skincare with the same curiosity she brings to understanding human behaviour: observe, question, test and learn.
I Wanted to See It
on My Own Skin.
SEISUI was developed through years of personal experimentation: trying different skincare products, studying their ingredients and observing the effects on my own skin. I tested different approaches to hydration, barrier support, renewal and anti-ageing. I looked closely at how individual ingredients performed, but also at what happened when they were combined.
The goal was never to create the longest ingredient list. It was to find the right combination. The result is the formula I had been searching for: a membrane-based cream combining skin-identical lipids with powerful retinal, lipid-soluble vitamin C, peptide technology, antioxidants and multiple hydration systems.
I didn't create SEISUI because I wanted another cream. I created it because I couldn't find the cream I wanted to use myself.
The Combination
Matters.
SEISUI brings together ingredients that are rarely found side by side in one night cream: a skin-like membrane, five ceramides with cholesterol and phytosphingosine, retinal, oil-soluble vitamin C, a peptide and antioxidants.
What makes it work is not any single ingredient. It is how they are combined.