Plasticizer composition and resin composition comprising the same

A plasticizer composition comprising an isophthalate-based composition and a citrate-based composition, wherein

• the isophthalate-based composition comprises dihexyl isophthalate, hexyl(2-ethylhexyl) isophthalate and di(2-ethylhexyl) isophthalate,
• the citrate-based composition comprises trihexyl citrate,
• a hexyl group of the isophthalate and a hexyl group of the citrate are derived from an isomer mixture of hexyl alcohols, and
• the isomer mixture of hexyl alcohols comprises two or more selected from the group consisting of 1-hexanol, 1-methylpentanol, 2-methylpentanol, 3-methylpentanol, 4-methylpentanol, 1,1-dimethylbutanol, 1,2-dimethylbutanol, 1,3-dimethylbutanol, 2,2-dimethylbutanol, 2,3-dimethylbutanol, 3,3-dimethylbutanol, 1-ethylbutanol, 2-ethylbutanol, 3-ethylbutanol and cyclopentyl methanol.