Science
Mechanism of Action
Helianthemum Nummularium Flower Extract functions primarily through its abundant phenolic compounds and flavonoids, which include quercetin glycosides and kaempferol derivatives. These compounds confer potent antioxidant capabilities, combating oxidative stress by activating the Nrf2 transcription pathway, thereby supporting cellular defense and potentially promoting healthy skin aging. Additionally, it demonstrates antimicrobial action against various microorganisms, contributing to skin protection against external factors. A modest, dose-dependent tyrosinase-inhibitory effect suggests a minor role in skin brightening.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Exhibits very high antioxidant activity, with an IC50 of 1.27 μg/mL for the ethanolic extract in a chemiluminescence assay.
- 02 Demonstrates considerable free-radical scavenging activity, achieving 94.6% inhibition against DPPH radical at 0.2 mg/mL, and an IC50 of 0.25 mg/mL for methanolic extracts.
- 03 Shows effective antimicrobial activity against various test microorganisms, generally observed in concentrations ranging from 25-100 μg/mL.
- 04 Displays specific antimicrobial activity against bacteria like Staphylococcus aureus and Escherichia coli, with inhibition zones between 12.5 mm to 21.5 mm, at a concentration of 5 mg gallic acid equivalents/mL in a 20% v/v propylene glycol extract.
- 05 Activates the Nrf2 pathway in a dose-dependent manner, indicating protection against oxidative stress and potential support for healthy aging.
- 06 Exhibits low tyrosinase-inhibitory activity, showing 42.7% inhibition at a concentration of 300 µg/mL, suggesting a modest potential for skin brightening.
Transparency
Dusting Analysis
No data available regarding 'dusting' or common overstatement of this ingredient's efficacy in cosmetic marketing.
The Formula
Formulation
Stability
The optimal pH range for the stability of Helianthemum Nummularium Flower Extract is currently undefined. It is typically prepared using aqueous, ethanolic, methanolic, or hydroalcoholic solvents, and has shown compatibility when formulated in a 20% v/v propylene glycol extract.
Safety
Safety Profile
While used in some homeopathic Bach flower remedies, the FDA has not evaluated these products for safety or efficacy, and scientific evidence supporting homeopathy is not recognized. Specific safety assessments for cosmetic use by CIR or SCCS are unavailable. General medicinal advice cautions against use during pregnancy and breastfeeding due to insufficient safety information.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This extract shows promising in-vitro antioxidant and antimicrobial activities relevant for skin protection and healthy aging, but lacks comprehensive safety reviews and specific clinical efficacy data for cosmetic applications.
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References
Sources