Herbal medicines, rooted in traditional systems like Ayurveda, Traditional Chinese Medicine, and Unani, have surged in popularity amid growing interest in complementary therapies. Yet, their integration into modern healthcare faces hurdles from inconsistent quality, safety, and efficacy due to variable raw materials and processing. This systematic review examines herbal medicine's current landscape, spotlighting standardization as key to therapeutic reliability. It covers techniques such as chromatographic fingerprinting, marker-based quantification, physicochemical profiling, and DNA barcoding. Modern innovations like nanotechnology, phytosomes, and bioenhancers improve drug delivery and bioavailability. The discussion extends to diverse global regulatory frameworks and cutting-edge analytical tools. Ultimately, blending scientific advancements with traditional wisdom promises safe, effective herbal therapeutics. Broadly, drug standardization ensures performance consistency, public health protection, regulatory compliance, and trust in pharmaceuticals—while supporting research integrity, trial reproducibility, and scalable biotech production.