Formulation and Characterization of a Polyherbal Nanogel for Acne Management

Acne vulgaris is a prevalent dermatological disorder primarily affecting adolescents and young adults, often associated with inflammation, microbial colonization, and excess sebum production. Conventional acne therapies, though effective, frequently cause adverse effects such as irritation, dryness, and antibiotic resistance. This study aimed to develop and evaluate a polyherbal nanogel formulation incorporating botanicals known for their anti-inflammatory, antibacterial, and antioxidant properties. The selected herbs—Curcuma longa (turmeric), Azadirachta indica (neem), Melaleuca alternifolia (tea tree oil), Citrus sinensis (orange peel), and honey—were integrated into a guar gum-based nanogel matrix using ethanol as a solvent and lemon juice for pH adjustment. The formulation process employed high-speed homogenization to ensure uniform distribution and nanoscale dispersion of active constituents.The resulting nanogel underwent comprehensive evaluation for its physicochemical properties, including pH (5.7), spreadability, washability, viscosity, consistency, greasiness, and organoleptic characteristics. Results indicated a stable, semi-solid, non-greasy formulation with favorable user-acceptance features. Antimicrobial and anti-inflammatory properties were attributed to the synergistic action of the incorporated herbal agents. Notably, the formulation was non-irritant in in vivo skin application studies. This polyherbal nanogel demonstrated enhanced dermal penetration and potential for sustained therapeutic action, making it a promising alternative to synthetic anti-acne treatments. The study underscores the potential of integrating traditional herbal medicine with nanotechnology to develop effective, safe, and consumer-friendly skincare solutions. This innovation not only addresses the limitations of conventional therapies but also aligns with the growing demand for natural, sustainable cosmeceuticals.