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Moumoujus

LAURUS NOBILIS LEAF OIL.

Questionable CAS 8002-41-3 / 8007-48-5 / FRAGRANCE, PERFUMING

Derived from the Bay Laurel tree, Laurus Nobilis Leaf Oil is a multi-functional botanical extract recognized for its antioxidant, antimicrobial, and anti-inflammatory properties. It is incorporated into skincare formulations to combat oxidative stress and address concerns like acne and excess sebum, requiring precise concentration due to its potential for irritation.

Summary

Antioxidant Antimicrobial Anti-inflammatory Astringent Soothing Masking Perfuming

Science

Mechanism of Action

Laurus Nobilis Leaf Oil functions by neutralizing free radicals, thereby protecting skin cells from oxidative stress and mitigating premature aging. Its antimicrobial action targets acne-causing bacteria by disrupting bacterial cell membranes and structures, preventing breakouts. Additionally, it offers soothing and anti-inflammatory benefits, while its astringent qualities help tighten pores and regulate sebum production. These biological activities are primarily attributed to its rich composition of terpenoids, phenolics, and fatty acids.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–1.5%
Optimal

0.1%

Key findings

  1. 01 At a concentration of 0.4 µL/mL, it demonstrated significant antimicrobial activity against various microorganisms, evidenced by inhibition zones ranging from 6.33 to 8.66 mm.
  2. 02 In vitro, it exhibited potent antioxidant capacity, neutralizing 50% of DPPH free radicals within a concentration range of 0.1-1.5 mg/mL (IC50).

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 7.3 – 7.5
0 7 14

Stability

Optimal stability for its key constituents is around pH 7.4 (±0.1). The oil should be stored in cool, dry, tightly sealed containers, shielded from heat, light, and minimal air exposure to maintain its integrity.

Conflicts

  • strong acids
  • alkalis
  • oxidizing agents

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0.1%
Pregnancy
Caution
Sensitization risk Moderate

Generally safe for most individuals when used at very low concentrations, specifically 0.1%. However, concentrations as low as 1% have been reported to cause skin irritation. This ingredient is advised against for pregnant women, children, and individuals with highly sensitive skin. It is approved with restrictions under Annex III of the EC Cosmetics Regulation and listed as GRAS for food and beverage applications. Notably, California has imposed a ban on its use in cosmetics effective January 1, 2027.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

Laurus Nobilis Leaf Oil offers compelling antioxidant and antimicrobial benefits but presents a moderate irritation risk, requires strict adherence to low concentrations, and faces significant regulatory restrictions, including a pending ban in California.

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