Stress is a common physiological and psychological condition that can negatively impact health and well-being. Herbal nutraceuticals offer a natural and safe approach for stress management due to their adaptogenic and neuroprotective properties. The present study aimed to formulate and evaluate a polyherbal nutraceutical powder containing Ashwagandha (Withania somnifera), Brahmi (Bacopa monnieri), Jatamansi (Nardostachys jatamansi), and Shankhpushpi (Convolvulus prostratus). The formulation was prepared using the geometric dilution method with lactose and magnesium stearate as excipients. Evaluation included organoleptic properties, pH, moisture content, ash value, and phytochemical screening. The powder showed satisfactory characteristics with a light brown color, aromatic odor, bitter taste, smooth texture, pH of 6.86, moisture content of 6.57%, and ash value of 14%. Phytochemical analysis confirmed the presence of alkaloids, flavonoids, tannins, saponins, carbohydrates, and proteins. The results indicate that the formulated polyherbal nutraceutical powder is stable and may serve as a promising natural supplement for stress management and mental wellness.