Abstract

FORMULATION AND EVALUATION OF SUNSCREEN SOAP CONTAINING CARROT SEED OIL AND ZINC OXIDE

Ms. Nayan R. Samant, Ms. Aishwarya B. Bhogate, Ms. Komal R. Pednekar, Mr. Rohan D. Ratool, Mr. Siddhesh L Sawant, *Mr. Sourabh D. Thakur

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Abstract

This study focuses on developing a novel sunscreen soap formulation that combines cleansing action with UV protection. The soap incorporates carrot seed oil (CSE)—a natural antioxidant and mild UV absorber—and zinc oxide (ZnO), a broad-spectrum physical UV filter. The aim is to enhance daily skin protection through routine washing. Formulations were prepared using the cold-process method, and evaluated for pH, hardness, foaming ability, stability, and in-vitro SPF. Results indicated that soaps containing both CSE (2%) and ZnO (4%) exhibited favorable physicochemical properties and measurable UV absorbance, suggesting potential for low-level daily photoprotection. The findings demonstrate the feasibility of integrating sunscreen actives in cleansing formulations for enhanced skincare benefits.

Keywords: Sunscreen soap, carrot seed oil, zinc oxide, UV protection, cold process, photoprotection.