Ingredient review
Korean Bugleweed Leaf Extract
INCI: Lycopus coreanus leaf extract
A gentle plant extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
In plain English
This is an extract from the leaves of Korean bugleweed, a plant used in traditional herbal practices. In skincare, it's added to provide antioxidant protection—meaning it may help neutralize some of the damage caused by pollution and UV exposure. However, most of the evidence comes from lab studies, not tests on human skin, so it's best seen as a supportive ingredient rather than a star performer.
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
Korean Bugleweed Leaf 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 Korean Bugleweed Leaf 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 botanical extract derived from the leaves of Lycopus coreanus, a plant native to East Asia. It contains various plant compounds like phenolics and flavonoids that are thought to have antioxidant and soothing properties.
How it works
In a cosmetic product, it is believed to donate electrons to neutralize free radicals (unstable molecules that can damage skin cells), potentially reducing oxidative stress. It may also help calm minor skin irritation, though the exact mechanism is not fully understood.
Pros
Gentle on skin
With a low irritation and comedogenic risk, this extract is unlikely to cause breakouts or stinging, making it suitable for sensitive skin types.
Antioxidant support
Lab studies suggest it can help fight free radicals, which may slow visible signs of aging like fine lines and dullness over time.
Cons and cautions
Weak human evidence
Most research is in test tubes or animals, so it's unclear how much benefit you'll actually see on your skin compared to well-studied antioxidants like vitamin C.
Low concentration in formulas
Typically used at low levels (under 2%), so its effects may be subtle and overshadowed by other active ingredients in the product.
Best for
- Anyone looking for a gentle, plant-based antioxidant in their routine
- Those with normal to combination skin who want extra environmental protection
Use caution if
- People with known allergies to mint-family plants (Lamiaceae) should patch test first
Usage tips
Safety summary
Considered safe for topical use at typical cosmetic concentrations. Allergic reactions are rare but possible, especially in individuals sensitive to mint-family plants. Always patch test a new product.
Research notes
Preliminary lab research shows antioxidant and anti-inflammatory activity, but there are no published clinical trials on human skin. More studies are needed to confirm real-world benefits.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Approved for cosmetic use in many regions including the EU and US as a botanical ingredient, with no specific restrictions at typical use levels.
- Common uses
- Serums, Moisturizers, Toner
- Environmental note
- Sourced from cultivated or wild-harvested Lycopus coreanus plants; sustainability depends on farming practices and region.
Good to know
- This extract is sometimes listed under a longer INCI name that includes multiple species, but the leaf extract alone is the most common form.
- It is not a sunscreen ingredient and does not replace SPF.
Common questions
What is Korean Bugleweed Leaf Extract in beauty products?
This is an extract from the leaves of Korean bugleweed, a plant used in traditional herbal practices. In skincare, it's added to provide antioxidant protection—meaning it may help neutralize some of the damage caused by pollution and UV exposure. However, most of the evidence comes from lab studies, not tests on human skin, so it's best seen as a supportive ingredient rather than a star performer.
What does Korean Bugleweed Leaf Extract do in a beauty product?
In a cosmetic product, it is believed to donate electrons to neutralize free radicals (unstable molecules that can damage skin cells), potentially reducing oxidative stress. It may also help calm minor skin irritation, though the exact mechanism is not fully understood.
Is Korean Bugleweed Leaf Extract safe for most people?
Considered safe for topical use at typical cosmetic concentrations. Allergic reactions are rare but possible, especially in individuals sensitive to mint-family plants. Always patch test a new product.
Who should be careful with Korean Bugleweed Leaf Extract?
People with known allergies to mint-family plants (Lamiaceae) should patch test first
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.