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BACKHOUSIA CITRIODORA LEAF OIL.

Valuable CAS 84775-80-4 / FRAGRANCE, PERFUMING

Commonly known as Lemon Myrtle, this potent Australian botanical oil is a powerhouse of citral, offering exceptional antimicrobial and oil-regulating properties. It serves as a sophisticated natural alternative for managing congestion and refining skin texture without the harshness of synthetic astringents.

Seboregulator Antimicrobial Astringent Antioxidant

Science

The oil's high concentration of citral (90-98%) disrupts microbial cell membranes to eliminate acne-causing bacteria like P. acnes. Simultaneously, it acts as a precise seboregulator by down-regulating protein markers involved in sebocyte differentiation and preventing the oxidation of skin squalene, which helps maintain clear pores and reduces inflammatory cytokine production.


Research

High confidence
Effective range 1–2%
Optimal

2%

Key findings

  1. 01 A 2% concentration demonstrated a 7% reduction in total sebum levels and a 30% decrease in cellular lipid accumulation over 28 days.
  2. 02 Effective inhibition of S. aureus and P. acnes was observed at 1% concentration.
  3. 03 High-dose application (10%) resulted in a 90% clearance of viral skin lesions within 21 days.

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.1%

Often included at trace levels (below 0.1%) solely for its aromatic properties to claim 'natural' benefits. At these levels, the oil provides scent but lacks the necessary citral concentration to actively regulate sebum or provide antimicrobial protection.


The Formula

Solubility
Oil
Optimal pH 4.5 – 7
0 7 14

Stability

Heat-sensitive volatile oil; must be incorporated during the cool-down phase below 40°C to prevent degradation.

Synergies

  • Niacinamide
  • Salicylic Acid
  • Tea Tree Oil

Conflicts

  • High heat
  • Strongly alkaline environments
  • Alcohol-based solvents

Safety

CIR Status
Not reviewed
Max tested
1%
Pregnancy
Safe
Sensitization risk Moderate

While generally safe, the TGA recommends a 1% limit for topical leave-on products due to high citral content, which can be sensitizing for those with fragrance allergies.


Your Skin

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

Our Assessment

Valuable

An exceptional botanical active for oily and acne-prone skin that balances sebum production and microbial flora when formulated at therapeutic concentrations.


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