In the types dimension of Pure Cortical Bone Granules, the market is differentiated by source and processing methodology, each influencing cost structure and adoption rate. Autologous granules, harvested from the patient’s own cortical bone, occupy a niche but high‑margin segment, representing roughly 12 % of volume; their use is limited to procedures where donor site morbidity is acceptable. Allogeneic granules, derived from screened donor bone and sterilized via gamma irradiation or supercritical CO₂, dominate the market with an estimated 68 % share, owing to their ready availability, standardized quality, and lower procedural complexity. Xenogeneic granules, sourced from bovine or porcine cortical bone, hold a modest 8 % share, constrained by regulatory scrutiny and residual immunogenic concerns. Processed synthetic analogues, engineered to mimic cortical architecture, account for the remaining 12 % and are gaining traction in regions with strict allograft regulations. This taxonomy clarifies how each type’s clinical and regulatory profile contributes to overall market dynamics.