Ingredient review
Trihydroxyaurone
INCI: Trihydroxyaurone
A gentle antioxidant from the flavonoid family that may help calm skin and protect against environmental stress, though research is still early.
In plain English
Trihydroxyaurone is a type of flavonoid, a natural compound found in plants like the silverweed or certain flowers. In skincare, it acts as an antioxidant, meaning it helps neutralize free radicals—unstable molecules from UV rays and pollution that can damage skin cells. It also has some soothing properties, which may help reduce redness or irritation. Because it's a newer ingredient, most evidence comes from lab studies rather than large human trials, so it's considered promising but not yet proven for all claims.
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
- natural
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Trihydroxyaurone 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 Trihydroxyaurone.
- 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 flavonoid compound (a type of plant pigment) with antioxidant and anti-inflammatory activity, often extracted from plants like Potentilla or related species.
How it works
It works by donating electrons to neutralize free radicals, preventing them from causing oxidative stress that leads to premature aging and skin dullness. It may also inhibit certain inflammatory pathways, helping to calm irritated skin.
Pros
Gentle on skin
Unlikely to cause irritation or clog pores, making it suitable for sensitive skin types.
Antioxidant protection
Helps neutralize free radicals from UV and pollution, supporting skin's defense against premature aging.
Cons and cautions
Limited research
Most evidence comes from lab studies; large human trials are lacking, so effectiveness is not fully confirmed.
Stability concerns
As a flavonoid, it may degrade in light or air, requiring careful formulation to maintain potency.
Best for
- Anyone looking for a gentle antioxidant
- Those with sensitive or reactive skin
Use caution if
- Those seeking a proven, high-efficacy antioxidant with strong clinical backing
Usage tips
Safety summary
Trihydroxyaurone is considered safe for topical use with low irritation and comedogenic risk. No significant safety concerns have been reported in cosmetic concentrations.
Research notes
Early research shows antioxidant and anti-inflammatory potential in lab and animal studies. Human clinical data is sparse, so it's best viewed as a supportive rather than primary active ingredient.
Common label clues
- Typical concentration
- 0.01% to 0.5%
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU and US, but not specifically approved as a drug ingredient.
- Common uses
- Serums, Moisturizers, Eye creams
- Environmental note
- Sourced from plants, making it a renewable ingredient, though extraction methods vary in sustainability.
Good to know
- Often found in serums targeting redness or environmental stress.
- May be listed under its INCI name only, so check labels if you're looking for it.
Common questions
What is Trihydroxyaurone in beauty products?
Trihydroxyaurone is a type of flavonoid, a natural compound found in plants like the silverweed or certain flowers. In skincare, it acts as an antioxidant, meaning it helps neutralize free radicals—unstable molecules from UV rays and pollution that can damage skin cells. It also has some soothing properties, which may help reduce redness or irritation. Because it's a newer ingredient, most evidence comes from lab studies rather than large human trials, so it's considered promising but not yet proven for all claims.
What does Trihydroxyaurone do in a beauty product?
It works by donating electrons to neutralize free radicals, preventing them from causing oxidative stress that leads to premature aging and skin dullness. It may also inhibit certain inflammatory pathways, helping to calm irritated skin.
Is Trihydroxyaurone safe for most people?
Trihydroxyaurone is considered safe for topical use with low irritation and comedogenic risk. No significant safety concerns have been reported in cosmetic concentrations.
Who should be careful with Trihydroxyaurone?
Those seeking a proven, high-efficacy antioxidant with strong clinical backing
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.