Orange peel

Herbal skincare products are increasingly favored due to their efficacy and minimal side effects. The skin, as the largest and most exposed organ, is particularly susceptible to environmental stressors and lifestyle changes. Vitamin C serum, a topical formulation rich in ascorbic acid, offers multiple dermatological benefits, including stimulation of collagen synthesis, reduction of fine lines and wrinkles, improvement of skin tone and texture, and protection against oxidative damage and photoaging. In this study, a herbal Vitamin C serum was developed using orange peel extract, leveraging its natural antioxidant properties. The formulation ensures enhanced penetration into the deeper layers of the skin for optimal efficacy. Factors such as active concentration, composition, and synergistic ingredients were carefully optimized to maximize benefits while minimizing irritation, with Vitamin C concentrations maintained within the safe and effective range of 5–20%. The serum demonstrated favorable physicochemical properties, stability, and biocompatibility, making it suitable for routine topical application. Proper usage involves applying a few drops to cleansed, dry skin once or twice daily, preferably with sunscreen during daytime, to achieve maximum skin protection and rejuvenation. This study highlights the potential of agro-waste-derived extracts in developing effective, safe, and sustainable cosmetic formulations.