Science
Mechanism of Action
This ingredient functions as an antioxidant by neutralizing free radicals, thereby protecting skin cells from premature aging and damage. It exhibits anti-inflammatory properties, reducing redness and irritation associated with conditions like acne and rosacea, and can decrease UV-induced COX-2 expression and cytokine production. For hydration, it provides essential vitamins, minerals, and fatty acids, locking in moisture and supporting skin regeneration and elasticity. It notably increases skin hydration by upregulating HAS2 expression via the GLK-MAP2K-MAPK signaling pathway. Its natural compounds, including flavonoids and tannins, contribute to skin brightening by inhibiting tyrosinase activity and melanin synthesis, which can reduce the appearance of dark spots. Furthermore, Rosa Gallica Flower Water aids in anti-aging by stimulating collagen production, improving elasticity, reducing fine lines, and suppressing matrix metalloproteinase-1 (MMP-1), while also downregulating UVB-induced COX-2 and MMP-1 expression. It also possesses soothing and mild cleansing properties.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
While flower water hydrolates have demonstrated cellular benefits at concentrations between 6% and 20%, specific optimal concentrations for direct cosmetic skin efficacy across all its claimed benefits are less defined. Its aromatic volatile organic compounds, such as citronellol and phenylethyl alcohol, can cause irritation at concentrations between 1.0% and 3.0% and are regulated as fragrance allergens. This potential for irritation at higher, potentially effective concentrations may lead formulators to use lower concentrations primarily for fragrance or mild soothing, potentially below the threshold for optimal therapeutic impact.
The Formula
Formulation
Stability
No specific optimal pH range for the stability of Rosa Gallica Flower Water in cosmetic formulations has been definitively established. The source plant typically thrives in a slightly acidic to neutral soil pH range of 6.0–7.0.
Conflicts
- Rosa gallica flower water contains volatile organic compounds (e.g., citronellol, phenylethyl alcohol) that, at concentrations between 1.0% and 3.0%, can cause skin irritation, including redness, itching, dryness, and tightness. These compounds are identified as fragrance allergens and may require specific labeling in the EU if they exceed 0.001% in leave-on products or 0.01% in rinse-off products.
Safety
Safety Profile
Rosa gallica L. extractives, including distillates like flower water, are generally recognized as safe (GRAS) by the FDA for food use. European Union and other regulatory bodies deem Rosa Gallica extract safe for cosmetic use, often recommending moderate doses. While a specific CIR maximum concentration for Rosa Gallica Flower Water is not available, a related ingredient, Rosa Centifolia Flower Water, has a reported maximum use concentration of 0.096%. Although generally well-tolerated, individuals with sensitive skin or known allergies to roses should conduct a patch test prior to widespread use, especially considering the presence of natural fragrance allergens.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Rosa Gallica Flower Water is a valuable ingredient, offering comprehensive benefits including hydration, antioxidant protection, anti-inflammatory effects, and anti-aging potential, suitable for most skin types despite potential fragrance allergen considerations at higher concentrations.
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