Ingredient review
Grape Lees Ferment Filtrate
INCI: SACCHAROMYCES/GRAPE LEES FERMENT FILTRATE
A gentle fermented ingredient from winemaking byproducts that may offer antioxidant and skin-soothing benefits, though research is still emerging.
In plain English
This ingredient is made by fermenting grape lees—the leftover skins, seeds, and pulp from winemaking—with a type of yeast called Saccharomyces. The fermentation process breaks down the grape material into smaller molecules that may be easier for skin to absorb. It's thought to provide antioxidant protection (helping defend skin from environmental damage) and support the skin's natural moisture barrier. Think of it as a gentle, natural way to give your skin a dose of grape-derived nutrients without the alcohol or sugar found in wine.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- biotech
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Grape Lees Ferment Filtrate is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Grape Lees Ferment Filtrate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
A fermented filtrate created by culturing Saccharomyces yeast on grape lees (the sediment left after pressing grapes for wine). The resulting liquid is filtered and used in skincare for its potential antioxidant and conditioning properties.
How it works
During fermentation, the yeast breaks down grape lees into smaller peptides, amino acids, and polyphenols. These smaller molecules may help support the skin's natural barrier function, provide antioxidant activity to neutralize free radicals, and offer mild hydration. The fermentation process also creates natural metabolites that can be soothing for some skin types.
Pros
Upcycled winemaking byproduct
Grape lees are a natural waste product from wine production, so using them in skincare is an eco-friendly way to repurpose agricultural leftovers.
Gentle antioxidant support
The fermentation process creates small antioxidant molecules that may help protect skin from daily environmental damage without harsh side effects.
Cons and cautions
Limited direct research
While fermentation and grape extracts are well-studied, specific human trials on Saccharomyces/Grape Lees Ferment Filtrate are scarce, so benefits are mostly inferred.
Potential for mild irritation
Though rare, individuals with yeast sensitivities may experience redness or breakouts. A patch test is recommended before full use.
Best for
- People looking for gentle antioxidant support in their routine
- Those interested in fermented skincare ingredients for barrier health
Use caution if
- Individuals with known yeast allergies should patch test first
Usage tips
Safety summary
Saccharomyces/Grape Lees Ferment Filtrate is considered safe for topical use in cosmetics. The fermentation process reduces potential irritants, and the ingredient is generally well-tolerated. As with any new ingredient, patch testing is advised for those with sensitive skin or yeast allergies.
Research notes
Research on fermented grape byproducts in skincare is promising but limited. Studies on similar ferments (e.g., Saccharomyces on other substrates) show antioxidant and barrier-supporting effects, but direct clinical evidence for this specific ingredient is still emerging.
Common label clues
- Typical concentration
- Typically used at 1-10% in leave-on products
- Regulatory status
- Generally recognized as safe for cosmetic use in the US and EU when used as intended. Not a drug ingredient.
- Common uses
- Serums, Toners, Essences, Moisturizers
- Environmental note
- Using grape lees helps reduce agricultural waste from winemaking, making this a more sustainable ingredient choice.
Good to know
- This ingredient is often found in Korean and Japanese skincare products as a gentle ferment
- It is not the same as wine or grape juice—the fermentation removes alcohol and sugar
Common questions
What is Grape Lees Ferment Filtrate in beauty products?
This ingredient is made by fermenting grape lees—the leftover skins, seeds, and pulp from winemaking—with a type of yeast called Saccharomyces. The fermentation process breaks down the grape material into smaller molecules that may be easier for skin to absorb. It's thought to provide antioxidant protection (helping defend skin from environmental damage) and support the skin's natural moisture barrier. Think of it as a gentle, natural way to give your skin a dose of grape-derived nutrients without the alcohol or sugar found in wine.
What does Grape Lees Ferment Filtrate do in a beauty product?
During fermentation, the yeast breaks down grape lees into smaller peptides, amino acids, and polyphenols. These smaller molecules may help support the skin's natural barrier function, provide antioxidant activity to neutralize free radicals, and offer mild hydration. The fermentation process also creates natural metabolites that can be soothing for some skin types.
Is Grape Lees Ferment Filtrate safe for most people?
Saccharomyces/Grape Lees Ferment Filtrate is considered safe for topical use in cosmetics. The fermentation process reduces potential irritants, and the ingredient is generally well-tolerated. As with any new ingredient, patch testing is advised for those with sensitive skin or yeast allergies.
Who should be careful with Grape Lees Ferment Filtrate?
Individuals with known yeast allergies should patch test first
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.