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Moumoujus

SALIX TETRASPERMA BARK EXTRACT.

Valuable / SKIN CONDITIONING

Derived from the bark of the Salix tetrasperma tree, this botanical extract is a multi-functional ingredient known for its potential to gently exfoliate, soothe, and purify the skin. It aims to improve skin texture and clarity by leveraging its rich profile of bioactive compounds.

Summary

Exfoliant Antimicrobial Anti-inflammatory Antioxidant Oil-balancing Pore-refining Soothing Hydrating Barrier support

Science

Mechanism of Action

Salix tetrasperma bark extract contains a blend of bioactive compounds, including flavonoids, phenolic compounds, tannins, and polyphenols. Notably, it also contains salicin, a precursor to salicylic acid. Upon application, salicin can be converted into salicylic acid, a beta hydroxy acid (BHA), which facilitates gentle chemical exfoliation. This action aids in dissolving excess sebum, promoting cellular turnover by shedding dead skin cells, and decongesting pores. Furthermore, the extract demonstrates anti-inflammatory and soothing properties, which contribute to reducing visible redness and irritation. Its antioxidant capacity aids in neutralizing free radicals, thereby protecting skin from environmental aggressors. The extract also contributes to balancing sebaceous gland activity, refining the appearance of pores, and enhancing skin hydration and barrier function. In vitro studies have also identified its ability to inhibit quorum sensing and virulence factors of Pseudomonas aeruginosa, suggesting a targeted antimicrobial benefit.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Safety

Safety Profile

CIR Status
The Cosmetic Ingredient Review (CIR) has classified Salix tetrasperma Bark Extract with 'insufficient data' for a direct safety assessment. A related species, Salix Alba (Willow) Bark Extract, is currently under 'Scientific Literature Review'.
Pregnancy
Caution
Sensitization risk Moderate

While a human repeat insult patch test (HRIPT) on a serum containing 0.0025% Salix Alba Bark Extract indicated it was non-irritating and non-sensitizing, direct specific safety data for Salix tetrasperma is limited. Individuals with known hypersensitivity to aspirin (salicylates) should exercise caution due to the extract's inherent salicin content. General recommendations for willow bark extracts suggest avoiding use in children, pregnant or nursing women, and those with specific medical conditions such as active peptic ulcers, glucose-6-phosphate dehydrogenase deficiency, severe liver or kidney dysfunction, or coagulation disorders. Acute toxicity studies of aqueous S. tetrasperma bark extract in albino rats demonstrated no mortality at tested doses.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Salix tetrasperma Bark Extract offers a valuable array of benefits, including gentle exfoliation, antimicrobial action, and soothing properties, though careful consideration is advised for individuals with salicylate sensitivities or specific medical conditions due to limited direct safety data for this species.

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