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CHAMAECYPARIS OBTUSA WOOD OIL.

Valuable CAS 91745-97-0 / FRAGRANCE

Commonly known as Hinoki Wood Oil, this precious botanical extract is prized for its potent antimicrobial and anti-inflammatory properties. It provides a multi-targeted approach to skin health by balancing sebum production and calming redness in reactive complexions.

Antimicrobial Soothing Sebum Regulator Antioxidant

Science

It utilizes high concentrations of terpenes, specifically alpha-cadinol and tau-muurolol, to disrupt the cellular membranes of acne-causing bacteria like P. acnes. Simultaneously, it modulates the inflammatory response by inhibiting the NF-κB and MAPK pathways, which effectively downregulates the production of pro-inflammatory cytokines such as TNF-α and IL-6.


Research

High confidence
Effective range 0.025–5%
Optimal

1%

Key findings

  1. 01 Clinical trials demonstrate that a 5% fermented preparation can reduce inflammatory acne by up to 65.3% over 8 weeks, showing superior efficacy compared to standard tea tree oil.
  2. 02 Studies at 1% concentration indicate a significant reduction in skin sensitivity and a measurable improvement in barrier function via the suppression of inflammatory mediators.

Transparency

Commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Due to its potent aromatic profile, it is frequently used at trace amounts (below 0.1%) primarily for fragrance. However, therapeutic benefits for acne and skin barrier repair require concentrations closer to 0.5-1%.


The Formula

Solubility
Oil
Optimal pH 4.5 – 6.5
0 7 14

Stability

A volatile essential oil sensitive to oxidation and thermal degradation. It must be incorporated during the cool-down phase of production (below 40°C) to maintain bioactivity.

Synergies

  • Lactobacillus ferment
  • Barrier-repairing lipids
  • Salicylic acid

Conflicts

  • Strong oxidizing agents
  • Highly alkaline environments

Safety

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

While not formally reviewed by the CIR, historical safety data and IFRA guidelines suggest a limit of 1% for leave-on products to avoid potential sensitization from longifolene content.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

A high-performance botanical that offers a sophisticated alternative to tea tree oil for managing acne and inflammation without compromising the skin barrier.


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