Science
Mechanism of Action
This ingredient functions primarily as a skin conditioning agent, delivering antioxidant protection to neutralize free radical damage and reduce the visible effects of aging. It is recognized for its ability to intensely hydrate dry skin. The natural presence of phenylethanol contributes to its antiseptic qualities, which may support the treatment of acne and help control conditions such as psoriasis and atopic dermatitis. Furthermore, it has demonstrated potential to assist in wound healing and diminish redness and inflammation.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In human subjects, a 48-hour closed patch test demonstrated no skin irritation, and a maximization test involving 24 volunteers did not induce skin sensitization.
- 02 A face mask formulation containing Rosa Centifolia Flower was non-irritating in a 24-hour single insult occlusive patch test conducted on 20 human subjects.
Transparency
Dusting Analysis
Rosa Centifolia Flower Oil is typically employed at concentrations where its cosmetic benefits, including fragrance and conditioning, are achieved within established regulatory safety limits. It is not generally categorized as an 'active' ingredient prone to dusting concerns for its primary efficacy, but rather has defined maximum concentration limits due to safety considerations.
The Formula
Formulation
Stability
Essential oils exhibit optimal stability in anhydrous (water-free) cosmetic formulations.
Conflicts
- Must be formulated to be non-sensitizing to the skin.
- Requires explicit labeling of its key volatile fragrance allergens, Citronellol and Geraniol, if their concentrations exceed 0.001% in leave-on products or 0.01% in rinse-off products within the EU market.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel deemed Rosa Centifolia Flower Oil safe for use in cosmetics when formulated to be non-sensitizing, with a recommended maximum concentration of 2%. While human studies at 2% and 0.8% indicated no irritation or sensitization, undiluted Rosa Centifolia Flower Oil was classified as a moderate skin irritant in animal studies. It is important to note that key volatile components, Citronellol and Geraniol, are classified as fragrance allergens under EC Cosmetics Regulation and mandate specific labeling if their thresholds are exceeded.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Rosa Centifolia Flower Oil is a valuable ingredient offering diverse skin benefits, including antioxidant protection and hydration, provided it is precisely formulated within established safety concentrations to mitigate potential allergen risks.
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