Science
Mechanism of Action
This extract derives its activity from a rich profile of bioactive compounds, including alkaloids, flavonoids (like rutin and quercetin), essential oils (such as cineole and limonene), and coumarins. It acts as an antioxidant, safeguarding skin cells from free radical damage and environmental stressors. Its inherent anti-inflammatory and antimicrobial properties help to soothe irritated skin and combat bacterial pathogens implicated in conditions like acne. Specific compounds have been identified to promote melanogenesis and tyrosinase activity through the Akt/GSK-3β/β-catenin pathway, suggesting targeted utility for conditions involving melanin deficiency, such as vitiligo. Furthermore, alkaloids and terpenes are believed to contribute to its demonstrated wound-healing capabilities.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In vitro testing at 50 μg/mL revealed that the extract promoted melanin production and tyrosinase activity in B16 cells, while also protecting PIG3V melanocytes against oxidative damage, suggesting therapeutic potential for vitiligo without inducing cytotoxicity at this concentration.
- 02 Topical application of a 5% methanolic extract significantly enhanced wound healing in rats compared to control groups in an in vivo study, demonstrating regenerative effects.
- 03 Ethanolic extracts (50%, 70%, and 90%) exhibited moderate bactericidal activity against key skin pathogens associated with acne vulgaris (S. epidermidis, S. aureus, P. acnes), with P. acnes demonstrating average MIC/MBC values of 1.38-2.86 mg/mL.
- 04 Demonstrated concentration-dependent DPPH radical scavenging (antioxidant) activity in vitro within a range of 10-400 μg/mL, with an IC50 of 160.09 µg/mL.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Specific optimal pH for stability was not identified. Due to the phototoxic nature of the furanocoumarins present, formulations incorporating this extract necessitate light-protective packaging to ensure stability and safety.
Conflicts
- High concentrations in products intended for sun-exposed skin (due to severe phototoxicity)
Safety
Safety Profile
RUTA GRAVEOLENS LEAF/STEM EXTRACT is generally considered safe for cosmetic use, but it contains furanocoumarins (e.g., psoralen, 5-methoxypsoralen, 8-methoxypsoralen) which are known phototoxic agents. Exposure to sunlight after application of high concentrations can lead to photodermatitis characterized by reddening, burning, and itching. The Scientific Committee on Cosmetic Products and Non-Food Products intended for Consumers (SCCNFP) has recommended that the total concentration of furocoumarin-like substances in finished cosmetic products for sun-exposed skin should not exceed 1 ppm (0.0001%), a guideline applicable to this extract. Ingested Ruta graveolens can be highly toxic, potentially causing organ failure.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Ruta Graveolens Leaf/Stem Extract provides valuable benefits for targeted skin concerns like vitiligo and wound healing, but its inherent phototoxicity necessitates highly precise formulation and strict adherence to regulatory limits for furocoumarin content.
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