Science
Mechanism of Action
This ingredient employs a dual-action pathway: mechanical abrasion from the ground plant fibers removes dead corneocytes, while its bioactive profile—specifically caruifolin A and various flavonoids—inhibits NF-κB DNA binding. This biochemical interference reduces the production of pro-inflammatory cytokines (IL-6 and IL-1β) and neutralizes reactive oxygen species (ROS) to mitigate oxidative stress.
Research
Clinical Evidence
Medium confidence2.5%
Key findings
- 01 In vitro studies at 100 µg/mL demonstrated that isolated tri-p-coumaroylspermidine inhibits HIV-1 protease by approximately 70%, highlighting the potency of its secondary metabolites.
- 02 Antibacterial assessments show an MIC of >1.000 mg/mL against MRSA, contributing to the modulation of surface skin flora.
- 03 Cytotoxicity benchmarks confirmed safety and lack of cellular toxicity at 16 times the minimum inhibitory concentration in HepG2 and Caco-2 cell lines.
Transparency
Dusting Analysis
While often used at functional levels in masks and scrubs for its physical properties, it is occasionally 'dusted' in serum or cream formulations purely for botanical claims without providing sufficient mechanical or anti-inflammatory benefit.
The Formula
Formulation
Stability
The physical powder is insoluble but stable; however, its bioactive polyphenols require a pH of 5.0–6.0 for peak stability. Exposure to pH levels above 8.0 typically causes darkening due to phenolic oxidation.
Synergies
- Humectants
- Soothing botanicals
- Non-comedogenic oils
Conflicts
- Strong oxidizing agents
- Strongly alkaline environments
- High-heat processing
Safety
Safety Profile
Individuals with known systemic allergies to the Asteraceae (Compositae) family should exercise caution due to the presence of sesquiterpenoid lactones.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent botanical choice for precision exfoliation that provides meaningful anti-inflammatory support alongside mechanical refining.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources