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STERCULIA URENS GUM.

Valuable CAS 9000-36-6 / BINDING, EMULSION STABILISING, FRAGRANCE, HAIR FIXING, VISCOSITY CONTROLLING

Sterculia Urens Gum is a natural polysaccharide derived from the Sterculia urens tree, recognized for its diverse bioactive properties and functional versatility in cosmetic formulations. It demonstrates significant anti-inflammatory and antioxidant activities, while also actively promoting wound healing and tissue repair. Additionally, it serves as an effective viscosity modifier and film-forming agent, enhancing product texture and skin feel.

Binding Emulsion Stabilising Hair Fixing Masking Viscosity Controlling Film Forming Adhesive

Science

This gum exerts its anti-inflammatory effects primarily through its flavonoid content. It provides antioxidant benefits by efficiently scavenging free radicals, thereby protecting cellular structures from oxidative damage. For skin repair, it actively promotes wound healing by accelerating the formation of granulation tissue and exhibiting antimicrobial properties. Functionally, it forms a protective film on the skin, acting as a demulcent to soothe and protect mucous membranes, and contributes significantly to the rheological properties of formulations.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Studies indicate its anti-inflammatory efficacy, attributed to flavonoid content, beneficial for managing inflammatory skin conditions.
  2. 02 Strong antioxidant activity has been observed through its ability to scavenge free radicals, protecting cells from oxidative damage.
  3. 03 It demonstrates wound healing capabilities by promoting tissue repair, accelerating granulation tissue formation, and offering antimicrobial benefits.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4.4 – 7
0 7 14

Stability

A 1% aqueous solution typically maintains a pH between 4.4 and 5.4. Stability is compromised above pH 7, where strong alkaline conditions induce irreversible transformations into a ropy, stringy mucilage due to deacetylation, with solutions becoming particularly stringy above pH 8. Viscosity is reduced by heating and the addition of electrolytes; electrolytes should be carefully incorporated into fully hydrated gum. For optimal viscosity retention, the storage temperature should not exceed 25°C to prevent acetic acid loss. It forms a gel at concentrations of 2-3% in water. It is sparingly soluble in ethanol and insoluble in acetone and chloroform. Solubility in deionized water can be enhanced by maintaining pH 10 with NaOH for 24 hours, followed by neutralization to pH 7.0.

Conflicts

  • Pyrilamine maleate
  • Strong electrolytes (reduce viscosity)
  • Strong alkalies (above pH 7, irreversible changes)

Safety

CIR Status
Not reviewed
Sensitization risk Unknown

Sterculia Urens Gum is Generally Recognized As Safe (GRAS) by the FDA (21 CFR 184.1349) and is listed in the European Pharmacopoeia, indicating a favorable general safety profile. However, no specific maximum topical concentration for cosmetic use has been established by regulatory bodies. Due to its susceptibility to bacterial degradation, formulations incorporating this ingredient must include appropriate preservatives. General safety precautions, such as avoiding contact with skin and eyes and wearing suitable protective gear, are recommended during handling.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Valuable

Sterculia Urens Gum is a valuable multifunctional ingredient, offering significant anti-inflammatory, antioxidant, and wound-healing benefits, alongside essential formulation properties like viscosity control and film formation, making it suitable for a broad range of precision skincare applications.


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