Ingredient review
Lapachone
INCI: Lapachone
Lapachone is a natural antioxidant that may help protect skin from environmental stress, but research in cosmetics is still limited.
In plain English
Lapachone is a compound found in the bark of the lapacho tree (also known as pau d'arco). In skincare, it's used as an antioxidant to help neutralize free radicals—unstable molecules that can damage skin cells and accelerate aging. Think of it like a shield for your skin against pollution and UV exposure. While it shows promise in lab studies, there isn't a lot of human research yet to confirm how well it works in creams or serums.
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
Lapachone 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 Lapachone.
- 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 naturally occurring naphthoquinone compound extracted from the heartwood of the lapacho tree (Tabebuia avellanedae), traditionally used in herbal medicine.
How it works
Lapachone works by donating electrons to neutralize free radicals, reducing oxidative stress on skin cells. It may also support the skin's natural repair processes by activating certain cellular pathways, though this is still being studied.
Pros
Natural antioxidant
Derived from a tree bark, it offers a plant-based option for fighting free radicals that can cause premature aging.
Potential soothing properties
Early research suggests lapachone may help calm skin irritation, making it a good addition for sensitive skin types when used at low concentrations.
Cons and cautions
Limited cosmetic research
Most studies on lapachone focus on its medicinal properties, not its effects in skincare products. You may not see dramatic results compared to well-studied antioxidants.
Possible irritation at high doses
Like many active compounds, lapachone can be irritating if used in high concentrations. Stick to products with it listed low on the ingredient label.
Best for
- People looking for a natural antioxidant to add to their routine
- Those with normal to dry skin seeking extra environmental protection
Use caution if
- Individuals with very sensitive or reactive skin should patch-test first
- Anyone allergic to plants in the Bignoniaceae family (e.g., catalpa trees)
Usage tips
Safety summary
Lapachone appears safe for topical use at typical cosmetic concentrations (0.1–1%). There is no evidence of serious side effects, but patch-testing is recommended due to limited human data.
Research notes
Research on lapachone in cosmetics is emerging. Lab studies show antioxidant and anti-inflammatory activity, but human clinical trials are scarce. More studies are needed to confirm its efficacy in skincare.
Common label clues
- Typical concentration
- Typically used at 0.1% to 1% in leave-on products
- Regulatory status
- Lapachone is not specifically regulated by the FDA as a cosmetic ingredient, but it is generally considered safe for topical use at low concentrations. Always follow product usage instructions.
- Common uses
- Anti-aging serums, Brightening treatments, Soothing formulations
- Environmental note
- Lapachone is sourced from the lapacho tree, which is native to South America. Sustainable harvesting practices are important to protect wild populations.
Good to know
- Lapachone is sometimes listed as 'beta-lapachone' on ingredient labels.
- It is not the same as lapacho tea, though both come from the same tree.
- The compound is sensitive to light and air, so look for products in opaque, airtight packaging.
Common questions
What is Lapachone in beauty products?
Lapachone is a compound found in the bark of the lapacho tree (also known as pau d'arco). In skincare, it's used as an antioxidant to help neutralize free radicals—unstable molecules that can damage skin cells and accelerate aging. Think of it like a shield for your skin against pollution and UV exposure. While it shows promise in lab studies, there isn't a lot of human research yet to confirm how well it works in creams or serums.
What does Lapachone do in a beauty product?
Lapachone works by donating electrons to neutralize free radicals, reducing oxidative stress on skin cells. It may also support the skin's natural repair processes by activating certain cellular pathways, though this is still being studied.
Is Lapachone safe for most people?
Lapachone appears safe for topical use at typical cosmetic concentrations (0.1–1%). There is no evidence of serious side effects, but patch-testing is recommended due to limited human data.
Who should be careful with Lapachone?
Individuals with very sensitive or reactive skin should patch-test first Anyone allergic to plants in the Bignoniaceae family (e.g., catalpa trees)
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.