Formulation and evaluation of anti-tanning soap by using millets

• Author Details:   
• Devaki Devi Balusu ^*
• Sai Krishna Nallajerla
• Tejeswari Attili
• Sandhya Manukonda
• Parimala Morcha
• Hanook Reddy Saragada
• Keerthi Sri Kuchu

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Introduction: The formation of melanin from extended sun exposure results in tanning, which increases the demand for safe, natural skincare treatments. Millets might be able to prevent tanning because of their high vitamin, phenolic chemical, and antioxidant content. In this work, their incorporation into soap compositions is examined to enhance dermatological advantages.

This study aimed to develop and evaluate an anti-tanning soap using millets. This study looked into the idea of incorporating millet powders or extracts into a soap base to produce a product that might reduce skin darkening. After formulation, the soap was assessed based on many standards.

Materials and Procedures: A cold process method was used to make the soap, which included millet extract (either pearl millet or foxtail), base oils (olive, coconut), sodium hydroxide, and other natural ingredients (turmeric, honey). The physicochemical characteristics (pH, hardness, and foam retention), stability, antioxidant activity (DPPH assay), and anti-tanning effectiveness (tyrosinase inhibition assay) of the prepared soap were assessed.
Results: The millet-based soap demonstrated considerable tyrosinase inhibition (≥60%), high lather stability, and a desired pH (8–9), all of which suggested anti-tanning potential. Stability studies verified that there was little degradation, and antioxidant activity was noteworthy (≥70% DPPH scavenging). Improved skin texture and less tanning were observed by users.

Conclusion: The study used millets to successfully create an anti-tanning soap that showed promise as an antioxidant and skin-lightening agent. This natural mixture deserves more clinical validation because it offers a sustainable substitute for synthetic anti-tanning solutions.