Polyherbal Liposomal Gel for Topical Drug Delivery: A Review on Formulation Strategies, Carrier Optimization, and Therapeutic Potential
Topical drug delivery remains an attractive route for both local and systemic therapy, offering the advantage of avoiding hepatic first-pass metabolism and gastrointestinal degradation while enabling site-specific action. However, conventional topical herbal formulations are frequently limited by poor skin permeability...