Development and characterization of herbal colors for the Holi festival using natural ingredients

Background: Holi, the Indian festival of colors, holds immense cultural and spiritual significance, symbolizing the victory of good over evil and the arrival of spring. Traditionally celebrated with naturally derived colors, modern commercialization has led to widespread use of synthetic dyes, which pose health and environmental risks. Introduction: Natural Holi colors, historically sourced from medicinal plants and kitchen ingredients, are safe, skin-friendly, and biodegradable. However, these have been largely replaced by synthetic variants that often contain toxic chemicals, heavy metals, and non-biodegradable substances, leading to dermatological issues and ecological harm. Renewed interest in herbal alternatives presents an opportunity to revive and validate traditional practices through scientific evaluation. Aim and Objective: The aim of this study is to develop and evaluate herbal Holi color formulations using natural, plant-based ingredients that are safe for human use, environmentally friendly, and culturally significant. The objectives include formulating four herbal Holi colors-Red, Orange, Green, and Yellow-utilizing powdered and liquid extracts derived from medicinal and culinary plants. These formulations will be evaluated for their organoleptic (sensory), physical, and functional characteristics. Additionally, the study will assess the skin compatibility and stability of the colors under ambient storage conditions to ensure their safety and effectiveness for traditional festive use. Materials and Methods: Natural ingredients including Neem, Tulsi, Spinach, Beetroot, Marigold, Turmeric, Arrowroot, and Corn flour were selected for color development. Essential oils like Rose, Mint, Cinnamon, and Lemongrass were added for fragrance and therapeutic benefits. Four formulations (F1-F4) were prepared using a standard base of Arrowroot, Corn flour, Multani mitti, and Gram flour. The powders were sieved, dried, and packed in airtight, eco-friendly containers. Evaluations included appearance, odor, flowability, solubility, skin irritation tests, and stability studies. Results and Discussion: All four formulations displayed smooth textures, pleasant natural odors, and vibrant yet safe colors. The herbal powders showed good flowability and solubility in water and ethanol, but minimal solubility in non-polar solvents like glycerin. No adverse reactions were observed during patch tests, confirming skin compatibility. Stability tests over one month indicated no clumping, discoloration, or odor loss. The incorporation of essential oils enhanced not only the aesthetic appeal but also added antimicrobial and soothing benefits. Conclusion: The study successfully developed safe, biodegradable, and skin-friendly herbal Holi colors that align with traditional practices and environmental sustainability. These formulations present a viable alternative to synthetic dyes and support a shift toward safer, culturally rooted celebrations. Future work may focus on optimizing color intensity, shelf-life extension, and scaling up for commercial production.