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Moumoujus

LAURUS NOBILIS LEAF/STEM EXTRACT.

Questionable CAS 84603-73-6 / SKIN CONDITIONING

Laurus Nobilis Leaf/Stem Extract is a multi-functional botanical ingredient renowned for its robust antioxidant and antimicrobial properties. It actively protects the skin from oxidative damage while combating various microorganisms, making it beneficial for clarifying and soothing. Additionally, its astringent qualities help refine pores and manage sebum production.

Summary

Antioxidant Antimicrobial/antibacterial Astringent Skin-conditioning

Science

Mechanism of Action

This extract functions comprehensively on the skin by neutralizing various free radicals, including DPPH, nitric oxide, oxygen, and hydroxyl radicals, thereby mitigating oxidative stress and inhibiting lipid peroxidation. Its broad-spectrum antimicrobial action targets bacteria and fungi, effectively preventing infections and managing acne-causing bacteria. Beyond protection, the extract promotes skin regeneration through anti-inflammatory effects, stimulation of blood circulation, enhanced cell proliferation, increased collagen production, and angiogenesis, supporting wound healing. Furthermore, it exerts an astringent effect, contributing to pore tightening and regulation of excess sebum.

Research

Clinical Evidence

Medium confidence
Effective range 1–10%
Optimal

N/A

Key findings

  1. 01 An essential oil derived from Laurus nobilis leaves exhibited significant antimicrobial activity against various tested microorganisms.
  2. 02 Aqueous and ethanolic extracts demonstrated potent suppression of lipid peroxidation, achieving 96.8% and 98.6% inhibition rates, respectively, in a linoleic acid emulsion.
  3. 03 Ether, chloroform, and ethyl acetate extracts effectively inhibited hydroxyl radicals. The 10% ethyl acetate solution showed superior inhibition (26.5 ± 1.1 nmol/cm³ compared to a control of 51.4 ± 1.2 nmol/cm³).

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

The abundant polyphenolic compounds within laurel leaf extracts are susceptible to degradation at elevated temperatures during extraction and processing. Optimal stability and compound integrity are often maintained through extraction methods involving ethanol/water mixtures.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk High

Formal safety assessments by CIR, SCCS, or FDA specifically for LAURUS NOBILIS LEAF/STEM EXTRACT are currently unavailable. Notably, the related Laurus Nobilis Leaf Oil, an essential oil, carries significant warnings due to reported skin irritation at concentrations as low as 1%, with recommendations for dilution to very low levels (up to 0.1%) for safe use. The EWG Skin Deep database also flags Laurus Nobilis Leaf Extract with 'High' concerns regarding Allergies & Immunotoxicity and Use Restrictions, indicating a notable potential for adverse reactions.

Your Skin

Skin Compatibility

No Normal
No Dry
Yes Oily
No Sensitive
Irritancy Medium
Comedogenicity Unknown

Our Assessment

Verdict

Questionable

While offering potent antioxidant and antimicrobial benefits, the lack of specific safety assessments for the extract and high reported sensitization risks for related compounds raise significant concerns for precision skincare formulations.

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