Ingredient review
Paper Mulberry Bark Extract
INCI: BROUSSONETIA PAPYRIFERA BARK EXTRACT
A gentle plant extract that may help even out skin tone and protect against environmental damage, but more human studies are needed to confirm its brightening effects.
In plain English
Paper mulberry bark extract comes from the bark of a tree native to Asia. In skincare, it's used to help brighten the skin and reduce the look of dark spots. It works by slowing down an enzyme that makes melanin (the pigment that gives skin color). It also has antioxidants that can help protect skin from pollution and sun damage. While it's considered gentle and safe, most of the research so far has been done in labs, not on people, so we don't know exactly how well it works in real-world skincare.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- natural
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Paper Mulberry Bark 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 Paper Mulberry Bark 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
moderateThere is useful support, but formula details and claim strength still matter.
What it is
An extract from the bark of the paper mulberry tree (Broussonetia papyrifera), a plant traditionally used in East Asian medicine. The extract contains compounds like flavonoids and phenolic acids that give it antioxidant and enzyme-inhibiting properties.
How it works
It inhibits the enzyme tyrosinase, which is involved in melanin production. By slowing this enzyme, the extract may help reduce excess pigment and prevent new dark spots from forming. Its antioxidant content also helps neutralize free radicals from UV exposure and pollution.
Pros
Gentle brightening
Works by inhibiting melanin production without the irritation often associated with stronger brighteners like hydroquinone.
Antioxidant protection
Contains flavonoids that help neutralize free radicals, potentially reducing damage from UV and pollution.
Cons and cautions
Limited human evidence
Most studies are lab-based or on animal skin; we don't yet have strong clinical data proving its effectiveness on human skin.
Slow results
If it works, it may take weeks or months of consistent use to see noticeable changes in pigmentation.
Best for
- People with hyperpigmentation or uneven skin tone
- Those looking for a gentle, plant-based brightener
- Anyone wanting extra antioxidant protection
Use caution if
- Individuals with known allergy to mulberry or fig family plants
- Those seeking fast, dramatic brightening results (may need stronger ingredients)
Usage tips
Safety summary
Paper mulberry bark extract is considered safe for topical use in cosmetics. Allergic reactions are rare but possible, especially in individuals sensitive to plants in the Moraceae family (fig, mulberry). Patch testing is recommended for those with very sensitive skin.
Research notes
In vitro studies show that paper mulberry bark extract inhibits tyrosinase activity and has antioxidant effects. One small human study found it reduced pigmentation when used in a cream formulation, but larger, well-controlled trials are lacking. The evidence is promising but not yet conclusive.
Common label clues
- Typical concentration
- 0.1% to 2% in leave-on products
- Regulatory status
- Generally recognized as safe for cosmetic use in the US and EU when used at typical concentrations. Not approved as a drug for treating medical conditions like melasma.
- Common uses
- Serums, Moisturizers, Brightening treatments, Sunscreens
- Environmental note
- Paper mulberry is a fast-growing tree that can be cultivated sustainably, but wild harvesting should be managed to avoid deforestation.
Good to know
- Paper mulberry is also used in traditional papermaking in East Asia.
- The extract is sometimes combined with other brighteners like niacinamide or vitamin C for enhanced effect.
Common questions
What is Paper Mulberry Bark Extract in beauty products?
Paper mulberry bark extract comes from the bark of a tree native to Asia. In skincare, it's used to help brighten the skin and reduce the look of dark spots. It works by slowing down an enzyme that makes melanin (the pigment that gives skin color). It also has antioxidants that can help protect skin from pollution and sun damage. While it's considered gentle and safe, most of the research so far has been done in labs, not on people, so we don't know exactly how well it works in real-world skincare.
What does Paper Mulberry Bark Extract do in a beauty product?
It inhibits the enzyme tyrosinase, which is involved in melanin production. By slowing this enzyme, the extract may help reduce excess pigment and prevent new dark spots from forming. Its antioxidant content also helps neutralize free radicals from UV exposure and pollution.
Is Paper Mulberry Bark Extract safe for most people?
Paper mulberry bark extract is considered safe for topical use in cosmetics. Allergic reactions are rare but possible, especially in individuals sensitive to plants in the Moraceae family (fig, mulberry). Patch testing is recommended for those with very sensitive skin.
Who should be careful with Paper Mulberry Bark Extract?
Individuals with known allergy to mulberry or fig family plants Those seeking fast, dramatic brightening results (may need stronger ingredients)
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.