What Fermented Rice Does for Your Skin
Rice has been part of Japanese beauty rituals for more than a thousand years. At DAMDAM, we take that relationship a step further through fermentation.
Fermentation transforms rice through the controlled action of microorganisms and time, creating a more complex composition of skin-conditioning compounds including amino acids.
DAMDAM works with fermented rice in more than one form. In Ume Plum Firming Serum, fermented rice bran supports hydration, barrier integrity and skin renewal. In Ginkgo Bouncy Water Cream, rice undergoes more than 1,000 hours of fermentation, amplifying its skin-supporting ceramides and amino acids.
One grain, transformed in different ways for different skin benefits.
What is fermented rice in skincare?
Fermented rice is rice or rice bran transformed through fermentation.
Rather than treating rice as a single skincare ingredient, DAMDAM works with different parts and transformations of the grain, including rice bran, fermented rice bran, rice-derived phytic acid and bio-fermented rice.
Each performs a different role.
Fermentation is particularly important because microorganisms and time can transform familiar ingredients into more complex, skin-supporting compounds.
For DAMDAM, this is where Japanese ingredient heritage meets modern biotechnology.
What does fermented rice do for skin?
The benefits depend on the specific ferment, but DAMDAM uses fermented rice primarily to support hydration, barrier health, skin conditioning and resilience.
It supports hydration
Fermentation can increase skin-conditioning components including amino acids, helping support moisture and a soft, comfortable skin feel.
DAMDAM’s slow-fermented rice is designed to support lasting hydration, while its Fermented Rice Bran Complex has been studied for its ability to support proteins involved in moisture retention.
It supports the skin barrier
Healthy-looking skin depends on more than surface hydration.
DAMDAM’s Fermented Rice Bran Complex is studied for its ability to support proteins involved in barrier integrity, while our slow-fermented rice amplifies skin-supporting ceramides and amino acids associated with hydration and resilience.
It supports skin renewal
The Fermented Rice Bran Complex used in Ume Plum Firming Serum is also studied for its ability to support proteins involved in skin renewal.
This makes fermentation part of DAMDAM’s longevity-first approach: supporting the conditions skin needs to remain hydrated, resilient and smooth-looking over time.
Why does DAMDAM ferment rice for more than 1,000 hours?
Some transformations take time.
DAMDAM’s rice undergoes more than 1,000 hours of fermentation, a slow biotechnology process used to amplify its skin-supporting ceramides and amino acids.
The resulting biofermented rice helps support hydration, barrier health and resilience and is used in Ginkgo Bouncy Water Cream.
The point of fermentation is not simply to make a traditional ingredient sound more advanced. It is to transform the ingredient itself.
This reflects one of DAMDAM’s core formulation principles: heritage ingredients, evolved through modern biotechnology.
What is Fermented Rice Bran?
Fermented rice bran is different from DAMDAM’s 1,000+ hour biofermented rice.
For Ume Plum Firming Serum, DAMDAM uses a specialized Fermented Rice Bran Complex created through yeast fermentation.
Rice bran is saccharified and then fermented with yeast to create a bioactive filtrate designed to support hydration, barrier integrity and skin renewal.
Ingredient-level analysis has shown activity related to proteins involved in moisture transport, barrier function and structural integrity, supporting DAMDAM’s use of the ferment for smoother, stronger and more resilient-looking skin.
This is the Dual Rice Ferment System within Ume Plum Firming Serum.
What does fermented rice have to do with Japanese skincare?
Fermentation has deep roots in Japanese culture, particularly in foods and drinks such as sake, miso and soy sauce.
DAMDAM approaches that heritage through modern skincare science.
Rather than simply apply traditional fermentation, we use controlled biofermentation to transform Japanese rice into skin-conditioning ingredients with specific roles in the formula.
It is an expression of DAMDAM’s wider philosophy: Japanese provenance, modern biotechnology, and precise formulation working together.
Fermented rice vs rice bran oil: what is the difference?
Both begin with rice, but they are very different skincare ingredients.
Rice bran oil is a lipid-rich oil derived from komenuka, the outer bran layer of the rice grain. DAMDAM uses it to support moisture, softness and luminosity in Silk Rice Cleansing Oil and Rice Drops Balancing Oil Serum.
Fermented rice bran is created by fermenting rice bran. DAMDAM uses it in Ume Plum Firming Serum to support hydration, barrier integrity and skin renewal.
Biofermented rice undergoes DAMDAM’s slow fermentation process for more than 1,000 hours, amplifying its skin-supporting ceramides and amino acids. DAMDAM uses it in Ginkgo Bouncy Water Cream.
They come from the same foundational ingredient, but processing changes both their composition and their role in a formula.
Is fermented rice an exfoliating acid?
Not by itself.
DAMDAM uses rice-derived phytic acid, a multifunctional AHA used to gently refine skin texture.
Fermented rice and phytic acid are separate rice-derived ingredients.
DAMDAM uses:
Rice Bran for moisture, softness and luminosity.
Fermented Rice Bran for hydration, barrier support and skin renewal.
Rice-Derived Phytic Acid for gentle exfoliation and texture refinement.
1,000+ Hour Biofermented Rice for hydration, barrier health and resilience.
Rice may be the common starting point, but each transformation serves a different purpose.
Where will you find fermented rice in DAMDAM?
Ume Plum Firming Serum
Ume Plum Firming Serum pairs Nanko Ume with a Dual Rice Ferment System in a lightweight firming serum designed to address elasticity, resilience and visible signs associated with glycation.
The Fermented Rice Bran Complex plays a supporting but distinct role from the Nanko Ume.
Nanko Ume targets glycation, the process in which sugars react with proteins such as collagen and elastin.
The Dual Rice Ferment System helps support skin renewal, barrier function and moisture retention, contributing to smoother, firmer and more resilient-looking skin.
The distinction matters: the anti-glycation action comes from Nanko Ume. The fermented rice supports the skin environment around it.
Ginkgo Bouncy Water Cream
Ginkgo Bouncy Water Cream is a featherlight water-gel moisturizer powered by ginkgo leaf and fermented rice.
Its biofermented rice undergoes more than 1,000 hours of fermentation, amplifying skin-supporting ceramides and amino acids to support hydration, barrier health and resilience.
The formula is designed for normal-to-oily skin and provides lightweight, bouncy hydration without a heavy finish.
Why does DAMDAM use different forms of rice?
Because rice is not simply one ingredient.
The bran, the ferment and the compounds derived from rice each offer something different.
DAMDAM’s philosophy of precision is to identify what each form does best, then formulate it where that benefit can be delivered optimally.
Rice bran becomes a nourishing cleansing and facial oil.
Rice-derived phytic acid becomes a gentle approach to skin refinement.
Fermented rice bran supports hydration, barrier integrity and renewal.
Bio-fermented rice supports hydration and resilience through amplified ceramides and amino acids.
This is what DAMDAM means by botanical intelligence refined by science: respecting the ingredient’s heritage while using modern biotechnology to unlock different possibilities.