Bio-based 1,2-Hexanediol segmentation by type distinguishes three grade categories—technical, pharmaceutical, and cosmetic—each defined by purity specifications, impurity limits, and certification requirements. Technical‑grade material, comprising roughly 55 % of volume, meets a minimum purity of 95 % and is priced for bulk applications such as industrial cleaners and polymer blends; its lower cost structure sustains the largest share of the market. Pharmaceutical‑grade diol, representing about 25 % of shipments, must satisfy ≥99 % purity, USP‑type residual solvent limits, and GMP certification, enabling its use in antiseptic formulations, drug‑delivery matrices, and sterile processing where regulatory compliance is non‑negotiable. Cosmetic‑grade, accounting for the remaining 20 %, combines high purity (≥98 %) with fragrance‑free and allergen‑tested status, aligning with stringent personal‑care standards and supporting premium product positioning. The price differential—approximately $2.8 kg⁻¹ for technical, $4.5 kg⁻¹ for pharmaceutical, and $3.6 kg⁻¹ for cosmetic—drives end‑user selection and directly influences overall market revenue, as higher‑value grades command premium margins despite lower volumes. Consequently, the aggregate market value is weighted toward the higher‑priced pharmaceutical and cosmetic grades, contributing an estimated 38 % of total revenue despite representing only 45 % of physical volume.