Science
Mechanism of Action
This ingredient functions as a multifaceted skin conditioning agent, cosmetic astringent, and fragrance component. Its biological activity is primarily attributed to antioxidants, specifically phenolics and flavonoids, which combat free radicals and mitigate environmental damage to improve overall skin appearance. It provides gentle hydration and nourishes the skin with beneficial fatty acids, effectively alleviating dryness and contributing to a more uniform complexion. Furthermore, it may exhibit anti-acne, anti-inflammatory, and mild antibacterial properties, assisting in skin purification by loosening dead skin cells and reducing visible redness and irritation.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Demonstrated no skin irritation or sensitization potential when incorporated into lip balms.
- 02 In a night cream formulation, a small subset of subjects (7 out of 48, with 2 deemed pertinent) reported mild discomfort, irritation, or swelling. However, no abnormal clinical signs were observed after 4 weeks of continuous use.
Transparency
Dusting Analysis
The available research primarily focuses on safety assessments at specific concentrations (0.005% and 0.04%) rather than establishing an efficacy threshold. While some individual sensitivity was noted at 0.005%, the ingredient is generally well-tolerated at higher concentrations. There is no indication in the data that it is commonly used at sub-efficacious levels for 'dusting' purposes.
The Formula
Formulation
Stability
For optimal stability, store the extract in a sealed container at room temperature within a dry environment.
Conflicts
- Retinoids: Due to the potential for high vitamin A content in some rose extracts, caution is advised when combining with retinoids to prevent excessive cumulative vitamin A exposure.
- High concentrations of multiple botanicals: Formulators must meticulously evaluate the cumulative levels of shared constituents when incorporating Rosa Canina Flower Extract with other botanical ingredients to avoid potentially hazardous concentrations.
Safety
Safety Profile
The CIR Expert Panel has concluded that Rosa canina-derived ingredients, including Rosa Canina Flower Extract, are safe at current use concentrations when formulated to be non-irritating and non-sensitizing. The FDA acknowledges their use in cosmetics, and rose fruit is generally recognized as safe for food consumption. Formulators are advised to consider the combined levels of constituents when integrating multiple botanical extracts.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Rosa Canina Flower is a valuable multi-functional ingredient, offering significant antioxidant protection, hydration, and skin conditioning benefits suitable for all skin types, with established safety when properly formulated.
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