ABSTRACT:
The demand for safe, refreshing, and eco-friendly skincare products surges during hot seasons, driving innovation in herbal 'summer cool soaps' that leverage bioactive botanicals such as cucumber, mint, vitamin E, almond oil, and glycerin. This review synthesizes evidence from recent formulations of cucumber-based herbal soaps, outlining their hydrating, anti-inflammatory, antioxidant, and soothing effects. We describe formulation strategies, evaluation methodologies (physicochemical and sensory), and quality attributes (pH, hardness, moisture content, foam stability, cleansing efficiency), while proposing future directions (nano-encapsulation, UV-protective actives, sustainable surfactants, multifunctional exfoliating formats). Summer cool soap represents a holistic, skin-compatible, and sustainable alternative to harsh synthetic soaps, particularly for heat-stressed and sensitive skin.
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