Ingredient review
Pilocarpus Microphyllus Leaf Extract
INCI: Pilocarpus Microphyllus Leaf Extract
A botanical extract with traditional use in haircare, but limited modern scientific evidence to support its benefits.
In plain English
This is an extract from the leaves of a South American shrub called Pilocarpus microphyllus, also known as jaborandi. In skincare and haircare, it's used mainly in products aimed at supporting hair growth or improving scalp health. The idea comes from traditional use, but there isn't strong scientific proof that it works for these purposes in cosmetic products.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- natural
- Evidence
- emerging
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Pilocarpus Microphyllus Leaf Extract can be useful, but watch for some irritation potential.
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 Pilocarpus Microphyllus 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
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 natural plant extract derived from the leaves of Pilocarpus microphyllus, a shrub native to Brazil. The extract contains various compounds, including alkaloids like pilocarpine, which have been studied for medicinal uses (like treating glaucoma), but in cosmetics it's used for its potential scalp and hair benefits.
How it works
In cosmetic formulations, this extract is thought to stimulate blood circulation in the scalp when applied topically, which may help deliver nutrients to hair follicles. It also has mild antimicrobial properties that could support a healthy scalp environment. However, these effects are not well-documented in peer-reviewed cosmetic science studies.
Pros
Traditional use in haircare
Has a long history of use in traditional medicine for hair and scalp health, which some users find reassuring.
Natural origin
Derived from a plant source, appealing to those seeking botanical-based cosmetic ingredients.
Cons and cautions
Weak scientific backing
There are very few modern, peer-reviewed studies confirming its effectiveness for hair growth or scalp benefits in cosmetic products.
Potential irritation
Contains alkaloids that may cause skin irritation or allergic reactions, especially in people with sensitive skin or scalp conditions.
Best for
- People looking for natural haircare ingredients with traditional use
- Those interested in scalp-stimulating products
Use caution if
- Individuals with very sensitive skin or known allergies to plants in the Rutaceae family
Usage tips
Safety summary
Considered safe for most people in cosmetic concentrations, but may cause irritation in sensitive individuals. Always patch test first.
Research notes
Evidence for cosmetic benefits is largely anecdotal and based on traditional use. Modern clinical studies are lacking, so effectiveness is not well-established.
Common label clues
- Typical concentration
- Typically used at 0.1–2% in leave-on products
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU and US when used at typical concentrations, though not specifically approved for any medical claims.
- Common uses
- Hair tonics, Scalp treatments, Shampoos
- Environmental note
- Sourced from the Pilocarpus microphyllus plant, which is native to Brazil. Sustainable harvesting practices are important to protect wild populations.
Good to know
- This extract is sometimes listed under the name 'Jaborandi' on product labels.
- The plant's leaves contain pilocarpine, a compound used in prescription eye drops, but cosmetic concentrations are much lower.
Common questions
What is Pilocarpus Microphyllus Leaf Extract in beauty products?
This is an extract from the leaves of a South American shrub called Pilocarpus microphyllus, also known as jaborandi. In skincare and haircare, it's used mainly in products aimed at supporting hair growth or improving scalp health. The idea comes from traditional use, but there isn't strong scientific proof that it works for these purposes in cosmetic products.
What does Pilocarpus Microphyllus Leaf Extract do in a beauty product?
In cosmetic formulations, this extract is thought to stimulate blood circulation in the scalp when applied topically, which may help deliver nutrients to hair follicles. It also has mild antimicrobial properties that could support a healthy scalp environment. However, these effects are not well-documented in peer-reviewed cosmetic science studies.
Is Pilocarpus Microphyllus Leaf Extract safe for most people?
Considered safe for most people in cosmetic concentrations, but may cause irritation in sensitive individuals. Always patch test first.
Who should be careful with Pilocarpus Microphyllus Leaf Extract?
Individuals with very sensitive skin or known allergies to plants in the Rutaceae family
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.