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Design, Optimization, and Physicochemical Characterization of a Synergistic Octa-Ingredient Poly-Herbal Dermaceutical Scrub utilizing a Xanthan-Caffeine Matrix
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Researchers created a face scrub made from plant ingredients like coffee, neem, sandalwood and tea tree oil, designed to replace plastic microbead exfoliants. Lab testing found the scrub had a skin-friendly pH, spread easily, remained stable, and met microbial safety standards.
Background: The cosmetic industry is undergoing a transition from synthetic exfoliants to biodegradable alternatives due to the environmental toxicity of microplastics. There is an increasing clinical demand for multi-functional dermaceuticals that provide simultaneous exfoliation and antimicrobial protection. Objective: The present study aims to formulate and evaluate a stable, octa-ingredient poly-herbal face scrub incorporating Coffea arabica, Azadirachta indica, Santalum album, and Melaleuca alternifolia in a stabilized Xanthan-Glycerin gel matrix. Methodology: An optimized Cold-Process Incorporation method was utilized. Xanthan gum (1.5% w/w) was employed as a primary rheology modifier. The formulation was subjected to rigorous physicochemical characterization, including pH determination, spreadability, washability, and microbial limit testing (MLT) using Methyl Paraben as a standardized preservative. Results: The optimized batch (F2) exhibited a skin-compatible pH of 5.9 ±0.12 and excellent spreadability (14.22 ±0.45 g·cm/sec). Centrifugation studies at 3000 RPM confirmed the physical stability of the suspended herbal particulates. The preservative efficacy test revealed a total aerobic count of <100 CFU/g, complying with IP 2022 standards. Conclusion: The developed poly-herbal scrub offers a sustainable, non-toxic, and pharmacologically active alternative to synthetic preparations, demonstrating significant potential for the management of acne-prone and dull skin.
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Researchers developed biodegradable microbeads from brewer's spent grain as a sustainable replacement for plastic microbeads in personal care exfoliants, which are banned in many countries due to their environmental persistence. The biosourced spherical particles showed mechanical properties comparable to plastic microbeads, offering a genuinely plastic-free alternative that breaks down naturally.
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