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LAVANDULA INTERMEDIA FLOWER/LEAF/STEM OIL.

Questionable CAS 92623-76-2 / PERFUMING

Lavandula Intermedia Flower/Leaf/Stem Oil is an essential oil prized for its fragrant, antioxidant, and antimicrobial properties. It can soothe skin, balance oil production, and support cell regeneration, but often at concentrations that may pose safety concerns.

Perfuming Antioxidant Antimicrobial Anti-inflammatory Sebum Balancing Cell Regeneration

Science

It exhibits antioxidant and biocidal activity by altering bacterial membranes and inhibiting quorum sensing. The oil also offers anti-inflammatory and analgesic effects, potentially promoting cell regeneration and sebum balance.


Research

Medium confidence
Effective range 0.05–0.125%
Optimal

0.125%

Key findings

  1. 01 Flower extracts show antibacterial efficacy (0.1-2.5%) and antifungal effects (0.05-5.0%).
  2. 02 Most bacteria/fungi require >2% for inhibition, though *T. violaceum* was inhibited at 0.2%.
  3. 03 Cell viability was maintained at 0.125%, but cytotoxicity occurred at 0.25% in human skin cells.

Transparency

Commonly dusted
Min. effective
0.05%
Red flag below
0.02%

If this ingredient is included for active benefits beyond fragrance, it is often underdosed, as broadly efficacious concentrations for antimicrobial effects frequently exceed the maximum safe concentration of 0.125%.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Sensitive to prolonged thermal stress, light, and oxygen, which can cause oxidation and alter odor. Essential oil components like esters are susceptible to hydrolysis, and some monoterpenes to polymerization at low pH.

Conflicts

  • Aqueous systems without proper solubilization
  • Exposure to light, oxygen, and high temperatures
  • Low pH environments
  • Angelica Essential Oil
  • Cypress Essential Oil
  • Grapefruit Essential Oil
  • Lemon Essential Oil
  • Peppermint Essential Oil
  • Thyme Essential Oil

Safety

CIR Status
Not reviewed
Max tested
0.125%
Sensitization risk Moderate

The SCCS has approved this substance with restrictions, but concerns exist regarding potential irritant or allergenic skin reactions, particularly with oxidation. In vitro studies show cytotoxicity to human skin cells at 0.25%, with viability maintained at 0.125%.


Your Skin

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

Our Assessment

Questionable

While offering various benefits, its narrow safe concentration window and potential for irritation make its inclusion in precision skincare challenging and often of limited active efficacy.


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