Science
Mechanism of Action
ROSMARINUS OFFICINALIS FLOWER/LEAF/STEM WATER functions primarily as an antioxidant, actively neutralizing free radicals to shield the skin from oxidative damage. Its anti-inflammatory effects are attributed to compounds such as rosmarinic acid and carnosic acid, which inhibit pro-inflammatory mediators like nitric oxide. The ingredient also exhibits antimicrobial activity, helping to control the proliferation of microorganisms on the skin's surface. Furthermore, it offers astringent and toning benefits, contributing to balanced sebum production and supporting the skin’s natural regenerative processes.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
Specific concentration ranges for optimal clinical efficacy are not available in the provided data. While botanical extracts are often included for their perceived benefits, the absence of quantitative efficacy data makes it difficult to ascertain if this ingredient is commonly used merely as a 'dusting' ingredient.
The Formula
Formulation
Stability
As an aqueous solution, this ingredient's stability is inherently tied to its water base. A related Rosmarinus Officinalis Leaf Extract has been noted to have an optimal pH range of 4.0-4.7, which may serve as a guide for formulation. Formulators must exercise caution regarding cumulative concentrations when combining multiple botanicals to prevent potentially hazardous levels of active constituents. Adherence to good manufacturing practices is crucial for limiting impurities.
Safety
Safety Profile
The FDA recognizes Rosemary (Rosmarinus officinalis) as Generally Recognized As Safe (GRAS) for food use. The CIR Expert Panel found Rosmarinus officinalis-derived ingredients, including this one, to be safe for cosmetic use when formulated to be non-sensitizing. However, this specific ingredient was not reported in current cosmetic use at the time of the 2014 CIR report. It carries a moderate risk of allergic reactions and skin sensitivity in some individuals, particularly those sensitive to rosemary, other Lamiaceae family plants, or aspirin. Patch testing is strongly recommended prior to full product usage.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This Rosmarinus Officinalis Flower/Leaf/Stem Water is a valuable ingredient, offering multi-faceted antioxidant, anti-inflammatory, toning, and oil-balancing benefits for a range of skin types, though individuals with sensitivities to rosemary or related compounds should perform patch testing due to a moderate sensitization risk.
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References
Sources