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LINDERA UMBELLATA TWIG OIL.

Valuable / FRAGRANCE

Lindera Umbellata Twig Oil, commonly known as Kuromoji essential oil, is a versatile ingredient prized for its significant anti-inflammatory, antibacterial, and antioxidant capabilities, making it a targeted solution for various skin concerns.

Antioxidant Skin-Conditioning Agent Masking Fragrance

Science

LINDERA UMBELLATA TWIG OIL operates through multiple pathways to benefit the skin. It exhibits robust anti-inflammatory effects by inhibiting the production of key pro-inflammatory cytokines such as nitric oxide, interleukin-6, and tumor necrosis factor-α. This action is mediated by the suppression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression in activated macrophages. Furthermore, it demonstrates broad-spectrum antibacterial activity against both Gram-positive organisms like S. aureus and Gram-negative bacteria such as E. coli. The presence of linalool, a major component, contributes to its relaxing and calming properties, while the oil as a whole provides general antioxidant protection, mitigating cellular damage from free radicals.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Showed effective antibacterial activity against S. aureus, with bacterial growth completely inhibited at concentrations exceeding 100 mg/ml (equivalent to 10%).
  2. 02 Decreased the growth rate of E. coli, with noticeable effects at 50 mg/ml (equivalent to 5%) and maximum turbidity suppression observed at 800 mg/ml (equivalent to 80%).
  3. 03 Kuromoji essential oil (KEO) suppressed LPS-induced production of pro-inflammatory cytokines (nitric oxide, IL-6, TNF-α) and inhibited iNOS and COX-2 mRNA and protein levels in RAW 264.7 cells, demonstrating anti-inflammatory potential.

Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Safety

CIR Status
Not reviewed
Sensitization risk Unknown

No specific safety assessment by CIR or SCCS for LINDERA UMBELLATA TWIG OIL has been found, and its explicit FDA status in cosmetics is not stated. While essential oils are generally considered safe for human use, they are potent and require significant dilution before direct skin application to minimize the risk of allergic reactions or irritation.


Your Skin

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

Our Assessment

Valuable

Lindera Umbellata Twig Oil is a valuable multi-functional ingredient offering significant anti-inflammatory and antibacterial benefits, particularly beneficial for oily skin, but requires careful formulation as a potent essential oil.


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