Khan El Kaser Rose Water Facial Spray is a water-based formulation primarily composed of Rosa damascena flower water, which is obtained through steam distillation. The primary active ingredient, Rosa damascena, contains numerous chemical constituents, including phenolic compounds (such as flavonoids), organic acids, and essential oils, contributing to its physiological effects. The pH of rose water is typically in the range of 4.0 to 5.0, aligning closely with the skin's natural acidity, which fosters compatibility and minimizes potential irritation. This mildly acidic nature aids in maintaining the skin’s barrier function, supporting the stratum corneum’s integrity and lipid composition. Additionally, rose water possesses low viscosity levels, allowing for easy application and rapid absorption upon topical administration. The active compounds within rose water, including glycosides and tannins, exhibit various mechanisms of action. Flavonoids, such as quercetin, are known for their antioxidant properties, neutralizing reactive oxygen species and mitigating oxidative stress within the skin. This action may reduce the formation of free radicals, which are implicated in premature aging and inflammatory processes. Furthermore, the presence of organic acids can enhance skin exfoliation through their mild astringent properties, promoting cellular turnover and revealing a more refined complexion. Upon application, rose water demonstrates humectant properties due to its hydrophilic nature, facilitating moisture retention within the epidermal layer.