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2025.10.06
BEAUTY

Why Put Serum-Grade Ingredients in a Lotion? Decorté’s “Black Koji Ferment Filtrate” Redefines the New Standard in Daily Anti-Aging Care

#Decorté
#fermentation beauty
#anti-aging care
#lotion
#skincare
#hydration
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When you hear the word 'fermentation,' you likely think of something good for your body. The cosmetics industry is no different, where 'ferment filtrate' is a buzzworthy ingredient. This fall, Decorté is capturing the spotlight with the launch of its original “Black Koji Ferment Filtrate,” a breakthrough ingredient developed through years of research.'
But why exactly is fermentation beneficial for the skin? And of all the fermented ingredients out there, why choose 'black koji' now? We spoke in detail with Masahiro Taira, a senior researcher at the KOSÉ Research Institute in charge of products for Decorté, to uncover the true potential of this new ingredient, which emerged from their proprietary aging research.
PROFILE
Masahiro Taira
Masahiro Taira

Skin and Drug Research Lab, KOSÉ Research Institute

Senior Researcher

So, Why is Fermentation Good for Your Skin?

We know fermentation has a healthy reputation for our bodies and skin, but what exactly is it?
"Fermentation is the process where microorganisms like koji mold, lactic acid bacteria, or yeast transform a substance into something beneficial for humans. If the change results in something harmful, we call it spoilage.
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