Ingredient review
Fermented Sericterium Extract
INCI: SACCHAROMYCES/SERICTERIUM EXTRACT/SODIUM BICARBONATE FERMENT FILTRATE
A gentle fermented extract that may help calm skin and provide antioxidant support, but research is still early.
In plain English
This ingredient is made by fermenting a plant extract (from the Sericterium family) with yeast and sodium bicarbonate. The fermentation process breaks down plant compounds into smaller, potentially more skin-friendly molecules. It's used in skincare to help soothe irritation and protect against environmental stress, though it's not as well-studied as some other fermented ingredients like galactomyces ferment filtrate.
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
Fermented Sericterium Extract 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 Fermented Sericterium Extract.
- 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 combining Saccharomyces (a type of yeast) with an extract from the Sericterium plant and sodium bicarbonate. The mixture is fermented, then filtered to remove solids, leaving a liquid rich in peptides, amino acids, and other bioactive compounds.
How it works
During fermentation, yeast enzymes break down larger plant molecules into smaller peptides and amino acids that can more easily interact with skin cells. These compounds may help reduce inflammation and neutralize free radicals. The sodium bicarbonate helps maintain a stable pH during fermentation and may contribute mild buffering effects in the final product.
Pros
Gentle on skin
The fermentation process creates smaller molecules that are less likely to cause irritation, making it suitable for sensitive skin types.
Antioxidant support
Provides a mild shield against free radicals from pollution and UV exposure, helping to prevent premature aging.
Cons and cautions
Limited research
There are very few peer-reviewed studies on this specific ferment, so its benefits are based on general fermentation science rather than direct evidence.
Not a powerhouse active
It works best as a supporting ingredient in a broader routine, not as a standalone solution for major skin concerns.
Best for
- Those with sensitive or easily irritated skin
- Anyone looking for a gentle antioxidant boost in their routine
Use caution if
- Individuals with known yeast allergies
- Those seeking strong, clinically proven anti-aging results
Usage tips
Safety summary
This ingredient is considered safe for topical use in cosmetics at typical concentrations. The fermentation process reduces the risk of irritation, but individuals with yeast allergies should exercise caution. No serious adverse effects have been reported in the available literature.
Research notes
Evidence is primarily based on general fermentation benefits (e.g., peptide release, antioxidant activity) rather than direct studies on this exact ferment. Early in vitro and anecdotal reports suggest soothing and protective effects, but human clinical trials are lacking.
Common label clues
- Typical concentration
- 1-5% in leave-on products
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU and US, with no specific restrictions beyond standard cosmetic ingredient regulations.
- Common uses
- Serums, Moisturizers, Toning lotions
- Environmental note
- The fermentation process is relatively low-energy and can utilize renewable plant sources, but specific sourcing for Sericterium extract may vary by supplier.
Good to know
- Fermented ingredients often have a shorter shelf life once opened; check the product's expiration date.
- Sodium bicarbonate in the ferment helps stabilize pH, but the final product is typically pH-balanced for skin.
Common questions
What is Fermented Sericterium Extract in beauty products?
This ingredient is made by fermenting a plant extract (from the Sericterium family) with yeast and sodium bicarbonate. The fermentation process breaks down plant compounds into smaller, potentially more skin-friendly molecules. It's used in skincare to help soothe irritation and protect against environmental stress, though it's not as well-studied as some other fermented ingredients like galactomyces ferment filtrate.
What does Fermented Sericterium Extract do in a beauty product?
During fermentation, yeast enzymes break down larger plant molecules into smaller peptides and amino acids that can more easily interact with skin cells. These compounds may help reduce inflammation and neutralize free radicals. The sodium bicarbonate helps maintain a stable pH during fermentation and may contribute mild buffering effects in the final product.
Is Fermented Sericterium Extract safe for most people?
This ingredient is considered safe for topical use in cosmetics at typical concentrations. The fermentation process reduces the risk of irritation, but individuals with yeast allergies should exercise caution. No serious adverse effects have been reported in the available literature.
Who should be careful with Fermented Sericterium Extract?
Individuals with known yeast allergies Those seeking strong, clinically proven anti-aging results
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.