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Moumoujus

STYRAX BENZOIN RESIN OIL.

Questionable CAS 84929-79-3 / 84696-18-4 / PERFUMING

Styrax Benzoin Resin Oil is a botanical extract recognized for its protective and restorative qualities. It forms a subtle film on the skin, aiding in moisture retention and enhancing elasticity, while also imparting notable antiseptic and anti-inflammatory benefits.

Summary

Film forming Masking Perfuming Antioxidant Antiseptic Anti-inflammatory Antibacterial Antifungal Astringent

Science

Mechanism of Action

This resin oil functions by creating an invisible, protective film on the skin's surface, which is instrumental in preventing transepidermal moisture loss and improving skin suppleness. Its diverse benefits, including antiseptic, anti-inflammatory, antibacterial, antifungal, and astringent properties, are attributed to key components such as cinnamic acid, benzoic acid, vanillin, and triterpenoids, which collectively support skin purification and accelerate dermal regeneration.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Styrax Benzoin Resin Oil is a thick, viscous liquid that may solidify over time; it can be gently warmed in a water bath to achieve a pourable consistency for easier integration. It exhibits insolubility in fixed (carrier) oils or fixed oil-based products when diluted with ethanol, for example, a 30% ethanol and 70% Benzoin resin mixture.

Conflicts

  • Incompatible with fixed oils when diluted with ethanol.
  • High concentrations or undiluted application may lead to skin sensitization or irritation.
  • Excessive amounts have the potential to suppress the odor profile of other aromatic ingredients.

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
2%
Sensitization risk Moderate

Styrax Benzoin Resin Oil is considered possibly safe when applied topically in appropriate concentrations, typically not exceeding 1-2% in cosmetic formulations. While rated as having a low risk for skin sensitization, it has been known to cause skin rashes in some individuals. Specific caution is advised for those with hypersensitive, diseased, or damaged skin, and its use is not recommended for children under two years of age. A prior patch test is strongly recommended, and proper dilution with a carrier oil or moisturizer is essential before application.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

Despite demonstrating compelling benefits in wound healing, skin protection, and anti-inflammatory activity, the moderate irritancy risk, specific cautions for sensitive skin and children, and its 'avoid' rating by some cosmetic databases render its general application questionable without precise formulation and explicit consumer guidance.

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