The Sequencing Reagents market can be parsed by type, which delineates the functional role of each product within a sequencing workflow. Primary sub‑categories include PCR‑based reagents, enzyme‑based reagents, library‑preparation kits, flow‑cell reagents, and ancillary consumables. PCR‑based reagents, chiefly polymerases and primers, underpin target amplification and account for roughly 22 % of total spend, driven by high‑throughput diagnostic pipelines. Enzyme‑based reagents—polymerases, ligases, and nucleases—represent the catalytic core of sequencing chemistries and contribute about 28 % of revenue, reflecting the premium placed on fidelity and speed. Library‑preparation kits, which integrate fragmentation, end‑repair, and adaptor ligation, dominate the segment with an estimated 34 % share, as they are indispensable for both short‑read and long‑read platforms. Flow‑cell reagents, providing the physical substrate for signal detection, hold a 10 % slice, while miscellaneous consumables (buffers, wash solutions) complete the remaining 6 %. This type‑based taxonomy clarifies cost drivers and informs strategic allocation of R&D resources across the Sequencing Reagents segmentation.