Ingredient review
Piceatannol
INCI: Piceatannol
A promising antioxidant from plants that may help protect skin from environmental stress and support a more even tone, though human studies are still limited.
In plain English
Piceatannol is a natural compound found in plants like passion fruit seeds and rhubarb. In skincare, it acts as an antioxidant, meaning it helps neutralize unstable molecules called free radicals that can damage skin cells and accelerate visible aging. Early research suggests it may also help calm redness and support a more even skin tone, but most evidence comes from lab studies rather than large human trials.
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
Piceatannol 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 Piceatannol.
- 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
Piceatannol is a stilbenoid antioxidant, chemically similar to resveratrol but with an extra hydroxyl group. It is found naturally in passion fruit seeds, rhubarb, grapes, and some berries. In cosmetics, it is used for its potential to protect skin from oxidative stress and support a more balanced, even complexion.
How it works
Piceatannol works primarily by donating electrons to neutralize free radicals, preventing them from damaging skin lipids, proteins, and DNA. It may also inhibit certain enzymes involved in inflammation and pigmentation, such as tyrosinase, which could help reduce the appearance of dark spots. Additionally, it has been shown in lab studies to support collagen production and calm irritation.
Pros
Potent antioxidant
Neutralizes free radicals that cause premature aging, helping to protect skin from pollution and UV-related stress.
Soothing potential
Early research indicates it may calm redness and irritation, making it suitable for sensitive skin types.
Cons and cautions
Limited human evidence
Most benefits are supported by lab and animal studies; large-scale human trials are still needed to confirm efficacy.
Stability concerns
Like many antioxidants, piceatannol can degrade when exposed to light and air, so it requires careful formulation to remain effective.
Best for
- Anyone looking for extra antioxidant protection
- Those with dull or uneven skin tone
- People with sensitive or redness-prone skin
Use caution if
- Those with known allergy to stilbenoids (rare)
Usage tips
Safety summary
Piceatannol is considered safe for topical use in cosmetics at typical concentrations. Mild irritation is rare but possible in very sensitive individuals. Always patch test new products.
Research notes
Research on piceatannol in skincare is promising but still emerging. Most evidence comes from in vitro (lab) and animal studies showing antioxidant, anti-inflammatory, and skin-brightening effects. Human clinical trials are limited, so benefits should be viewed as preliminary.
Common label clues
- Typical concentration
- 0.1% to 1% in leave-on products
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU and US when used at typical concentrations. Not a regulated drug ingredient.
- Common uses
- Anti-aging serums, Brightening treatments, Soothing formulations
- Environmental note
- Sourced from plant materials like passion fruit seeds, which are often byproducts of the food industry, supporting sustainable sourcing.
Good to know
- Piceatannol is a close chemical cousin of resveratrol but is considered more bioavailable in some studies.
- Passion fruit seed extract is a common natural source of piceatannol in skincare.
- It is often used at low concentrations (0.1–1%) in leave-on products.
Common questions
What is Piceatannol in beauty products?
Piceatannol is a natural compound found in plants like passion fruit seeds and rhubarb. In skincare, it acts as an antioxidant, meaning it helps neutralize unstable molecules called free radicals that can damage skin cells and accelerate visible aging. Early research suggests it may also help calm redness and support a more even skin tone, but most evidence comes from lab studies rather than large human trials.
What does Piceatannol do in a beauty product?
Piceatannol works primarily by donating electrons to neutralize free radicals, preventing them from damaging skin lipids, proteins, and DNA. It may also inhibit certain enzymes involved in inflammation and pigmentation, such as tyrosinase, which could help reduce the appearance of dark spots. Additionally, it has been shown in lab studies to support collagen production and calm irritation.
Is Piceatannol safe for most people?
Piceatannol is considered safe for topical use in cosmetics at typical concentrations. Mild irritation is rare but possible in very sensitive individuals. Always patch test new products.
Who should be careful with Piceatannol?
Those with known allergy to stilbenoids (rare)
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.