Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

STYRAX TONKINENSIS RESIN EXTRACT.

Questionable CAS 9000-72-0 / 84012-39-5 / PERFUMING, SKIN CONDITIONING

Styrax Tonkinensis Resin Extract is a botanical ingredient recognized for its skin-conditioning and aromatic properties. It offers multifaceted benefits, including antiseptic, anti-inflammatory, and antioxidant effects, supporting skin regeneration and clarity, though its use requires careful consideration due to sensitization potential.

Summary

Skin-conditioning Perfuming Antiseptic Anti-inflammatory Antibacterial Antioxidant Skin protectant Astringent Antifungal Preservative (as part of a blend)

Science

Mechanism of Action

This extract functions as a robust skin conditioning agent, visibly improving skin texture and appearance. It leverages antiseptic, anti-inflammatory, and antibacterial properties to aid in minor skin irritations, support impure skin conditions, and promote regeneration. Its antioxidant capacity helps protect the skin, while astringent properties may contribute to pore size reduction. Additionally, the presence of benzoic acid helps inhibit microbial growth, and its antifungal activity contributes to overall skin health.

Research

Clinical Evidence

Low confidence
Effective range 0.4–0.8%
Optimal

N/A

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.8%
Red flag below
0.8%

Despite initial claims of suitability for various skin types, including sensitive, detailed safety data indicates this extract contains known skin-sensitizers such as benzyl benzoate, benzyl cinnamate, and cinnamic acid. Exceeding the recommended maximum concentration of 0.8% in cosmetic formulations, particularly as part of a preservative blend, significantly increases the risk of adverse reactions.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

The extract is insoluble in water but readily soluble in ethanol and can be effectively diluted in essential oil blends or alcohol-based solutions. No explicit optimal pH range for stability has been identified. It is compatible as a component within preservative systems.

Synergies

  • Preservative blends (contributes antimicrobial properties)
  • Fragrance compositions (acts as a fixative to prolong scent)

Conflicts

  • High concentrations or formulations for sensitive skin types (due to sensitizing components like benzyl benzoate and cinnamic acid)

Safety

Safety Profile

CIR Status
Insufficient data
Max tested
0.8%
Sensitization risk High

Recognized by the FDA for use in small quantities as a food flavoring, this extract contains potential allergen components including benzyl benzoate, benzyl cinnamate, and cinnamic acid, which are known skin sensitizers. It has been documented to cause allergic skin reactions, skin irritation, and serious eye irritation. Therefore, it is strongly advised to avoid its use on sensitive skin. The CIR and SCCS have insufficient specific data for 'STYRAX TONKINENSIS RESIN EXTRACT' to deem it definitively 'safe as used'.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

While offering numerous potential skin benefits, the significant risk of sensitization due to known allergen components, especially for sensitive skin, makes its inclusion in precision skincare formulations highly questionable without robust, specific safety data.

Related

Similar Ingredients

Finding similar ingredients…