The formulation and optimization of feminine liquid soap represent a critical endeavor in the realm of personal care product development. This study explores the multifaceted aspects of designing an effective and appealing liquid soap tailored specifically for feminine hygiene. The research encompasses a comprehensive investigation into the selection and optimization of key ingredients, with a focus on achieving optimal cleansing efficacy while maintaining skin-friendly attributes. Fundamental to this optimization process is the delicate balance between pH levels, skin moisturization, and the incorporation of active ingredients that contribute to feminine hygiene. Methodologies involving experimental design and statistical analysis are employed to systematically optimize the formula, taking into account sensory attributes, stability, and microbial safety. The study aims to not only enhance the product's functional performance but also to address consumer preferences and market trends. The findings of this research contribute to the advancement of formulation science in the context of feminine liquid soap, offering insights that can be leveraged by personal care product developers and manufacturers to create products that align with the diverse needs of modern consumers.