Ingredient review

Cymbopogon Schoenanthus Leaf Extract

INCI: CYMBOPOGON SCHOENANTHUS LEAF EXTRACT

A botanical extract with astringent and antimicrobial benefits, best for oily or blemish-prone skin, but can be irritating for sensitive types.

beautyskincarebotanical

In plain English

This is an extract from lemongrass leaves. In skincare, it's used mainly for its ability to tighten pores (astringent effect) and fight acne-causing bacteria. It also adds a fresh, citrusy scent. However, because it contains natural compounds like citral and limonene, it can cause irritation or allergic reactions in some people, especially those with sensitive skin.

Review score

Safety, usefulness, and evidence

3.8Good
3.8/ 5

Potentially useful with some tradeoffs

The evidence base is useful, but some claims depend heavily on the formula.

Main practical flags: irritation is moderate; clogging risk is low.

Source
natural
Evidence
moderate
Irritation
moderate
Clogging risk
low
How reviews are scored

Quick decision guide

Useful, but context matters

Cymbopogon Schoenanthus 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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Cymbopogon Schoenanthus Leaf Extract.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. 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

moderate

Can bother some users, especially with frequent use, damaged skin, or strong companion ingredients.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A natural extract derived from the leaves of Cymbopogon schoenanthus, a type of lemongrass native to Africa and Asia. It is rich in essential oils, flavonoids, and tannins.

How it works

The extract's tannins and essential oils help tighten skin tissue (astringent), reducing the appearance of pores. Its antimicrobial components, such as citral, can inhibit the growth of certain bacteria, including those linked to acne. It also provides a mild exfoliating effect due to its natural acids.

Pros

Natural pore-tightening

The astringent properties can help temporarily tighten pores, giving skin a smoother appearance without harsh chemicals.

Antimicrobial support

Research suggests it can inhibit acne-causing bacteria, making it a helpful addition to cleansers or toners for blemish-prone skin.

Cons and cautions

Irritation risk

Contains citral and limonene, which are common allergens and can cause redness, stinging, or contact dermatitis in sensitive individuals.

Potential photosensitivity

Some compounds in lemongrass extract may increase the skin's sensitivity to UV light, so it's best used in rinse-off products or with sunscreen.

Best for

  • People with oily or combination skin
  • Those looking for a natural astringent to minimize pores
  • Individuals with occasional breakouts

Use caution if

  • People with sensitive, dry, or eczema-prone skin
  • Those allergic to citrus or grass pollens

Usage tips

Patch test on a small area before using on your face, especially if you have sensitive skin.
Use in rinse-off products like cleansers or masks to minimize irritation risk.
Always follow with a broad-spectrum sunscreen if using a leave-on product containing this extract.

Safety summary

Generally safe for most skin types when used at typical cosmetic concentrations, but carries a moderate risk of irritation and allergic reactions due to its natural fragrance compounds. Not recommended for sensitive or damaged skin.

Research notes

Studies confirm antimicrobial activity against Propionibacterium acnes and other skin bacteria. Astringent effects are supported by traditional use and some in vitro data, but large-scale human trials are limited.

Common label clues

Typical concentration
0.5% to 2% in leave-on products; up to 5% in rinse-off products
Regulatory status
Approved for cosmetic use in the EU, US, and most other regions. The International Fragrance Association (IFRA) sets guidelines for safe levels of citral in leave-on products to limit irritation.
Common uses
Toners, Cleansers, Masks, Facial mists
Environmental note
Lemongrass is a fast-growing, renewable crop that requires minimal water and pesticides, making it a relatively sustainable botanical source.

Good to know

  • Often listed as 'Lemongrass Extract' on product labels, but the INCI name specifies the exact species.
  • The essential oil of lemongrass is much more concentrated and irritating; this extract is typically milder.
  • It is a common ingredient in natural and 'green' beauty products.

Common questions

What is Cymbopogon Schoenanthus Leaf Extract in beauty products?

This is an extract from lemongrass leaves. In skincare, it's used mainly for its ability to tighten pores (astringent effect) and fight acne-causing bacteria. It also adds a fresh, citrusy scent. However, because it contains natural compounds like citral and limonene, it can cause irritation or allergic reactions in some people, especially those with sensitive skin.

What does Cymbopogon Schoenanthus Leaf Extract do in a beauty product?

The extract's tannins and essential oils help tighten skin tissue (astringent), reducing the appearance of pores. Its antimicrobial components, such as citral, can inhibit the growth of certain bacteria, including those linked to acne. It also provides a mild exfoliating effect due to its natural acids.

Is Cymbopogon Schoenanthus Leaf Extract safe for most people?

Generally safe for most skin types when used at typical cosmetic concentrations, but carries a moderate risk of irritation and allergic reactions due to its natural fragrance compounds. Not recommended for sensitive or damaged skin.

Who should be careful with Cymbopogon Schoenanthus Leaf Extract?

People with sensitive, dry, or eczema-prone skin Those allergic to citrus or grass pollens

Research sources

CosIng Database - European CommissionOpenPubMed - Antimicrobial activity of lemongrass extractOpenIFRA Standards on CitralOpen

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.