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Moumoujus

CYMBOPOGON SCHOENANTHUS LEAF EXTRACT.

Questionable CAS 89998-16-3 / SKIN CONDITIONING

Cymbopogon Schoenanthus Leaf Extract, derived from lemongrass, is a botanical ingredient offering a suite of benefits for managing oily and acne-prone skin. It acts as an antimicrobial, anti-inflammatory, and antioxidant agent, regulating sebum production and visibly tightening pores for a balanced, mattified complexion. However, its classification as a contact allergen, attributed to natural fragrance components, necessitates careful consideration for sensitive individuals.

Summary

skin conditioning antimicrobial anti-inflammatory antioxidant sebum regulating astringent pore refining soothing moisturizing elasticity enhancing skin regenerating purifying mattifying

Science

Mechanism of Action

This extract employs a multi-faceted approach to improve skin health: it functions as an antimicrobial agent, notably limiting the proliferation of acne-causing bacteria like P. acnes, and as an anti-inflammatory, reducing redness and irritation. As a potent free radical scavenger, it offers antioxidant protection against environmental damage and helps diminish visible signs of aging. Furthermore, it precisely regulates sebum production in overactive oil glands, mattifying shiny areas and visibly tightening pores through its slightly acidic pH, while also enhancing skin microcirculation, moisturizing, and promoting natural regeneration.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 6.5
0 7 14

Stability

The extract, often prepared with water and glycerin, may be susceptible to oxidation. Hydrosol forms of this ingredient are sensitive to oxidation and are recommended to be stored in a refrigerator for up to 6 months after opening; any change in appearance or smell indicates degradation and discontinuation of use.

Conflicts

  • Known allergens: contains naturally occurring citral, limonene, geraniol, and farnesol, which can cause allergic reactions in sensitive individuals.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk High

The European Commission's Scientific Committee on Consumer Safety (SCCS) and the European Union classify Cymbopogon schoenanthus as an established human contact allergen. It contains declarable fragrance allergens including citral, limonene, geraniol, and farnesol, and is listed by EWG with high concern for 'Allergies & Immunotoxicity'. The substance is also classified as a skin irritant, contradicting some claims of being non-irritating. Dermal toxicity data for the extract is currently not determined. Its FDA Generally Recognized As Safe (GRAS) status applies solely to its use as a food additive, not for topical cosmetic applications.

Your Skin

Skin Compatibility

No Normal
No Dry
Yes Oily
No Sensitive
Irritancy High
Comedogenicity Low

Our Assessment

Verdict

Questionable

While Cymbopogon Schoenanthus Leaf Extract offers robust benefits for oily and acne-prone skin, its well-documented status as a contact allergen and skin irritant, particularly for sensitive individuals, positions it as a questionable choice for precision skincare formulations.

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