<p>The landscape of drug delivery is experiencing a paradigm shift catalyzed by the transformative potential of biopolymers. Derived from natural sources such as chitosan, alginate, and gelatin, these polymers offer inherent advantages including biocompatibility, biodegradability, and versatility, making them highly desirable for precision drug delivery systems. Across various routes of administration including oral, transdermal, injectable, ocular, and targeted delivery, biopolymers showcase unparalleled levels of precision and patient-centricity. From advanced nanoformulations and microbiome-targeted systems in oral delivery to microneedle arrays and hydrogel dressings in transdermal delivery, biopolymers drive innovation. Injectable systems featuring smart hydrogels and cellular targeting exemplify the shift toward minimally invasive yet highly effective treatments. Ocular and targeted delivery, particularly in cancer therapeutics, witness groundbreaking advancements facilitated by biopolymers, promising enhanced bioavailability and specificity. Current research trends highlight the potential for personalized medicine with multifunctional nanoparticles and stimuli-responsive polymers, offering tailored treatments for improved efficacy and therapeutic outcomes. As the transformative horizon of biopolymers in drug delivery continues to unfold, we stand on the brink of a new era characterized by innovation, sustainability, and enhanced patient care, promising to revolutionize pharmaceutical sciences for the foreseeable future.</p>