Abstract
Gel are semisolid systems made up of a gelling agent and a polar liquid solvent. Gels are used in the food, pharmaceutical, and cosmetics industries. They are classified based on their structural and rheological properties. Scientists are looking for new ways to create gels with better properties. Many bigel formulations have been created and altered recently to satisfy the demands of various applications. Bigels ability to deliver both hydrophilic and lipophilic active agents, their water washability after application to the skin, their easy preparation, good stability, and the enrichment of stratum corneums hydration, which results in a cooling and moisturizing effect, are some of their key characteristics that make them useful for controlled drug delivery. Since bigel formulations are a new class of materials, further research into these systems is necessary before they can be used in real-world applications. When synthesizing bigels by combining organogel and hydrogel, several factors are crucial, such as bigel storage. KEY WORDS: Gels, Bigels, Hydrophilic, Lipophilic, Controlled Drug Delivery
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