Transparency and hardness to be high, use Characteristic in utilization to the satisfactory transparent gel cosmetics, and the aforementioned transparent gel cosmetics the ideal gelatinizer. The esterification reaction product which is obtained the glycerine and carbon count the dibasic Acid and carbon count fatty acid 8 of 18 - 28 - 28 (however, excluding the dibasic Acid,) by reacting and the transparent gel cosmetics which feature the 12 hydroxy stearic acid and that the oil content is contained The gelatinizer which features the esterification reaction product which is obtained the glycerine and carbon count the dibasic Acid and carbon count fatty acid 8 of 18 - 28 - 28 (however, excluding the dibasic Acid,) by reacting and that it contains the 12 hydroxy stearic acid.透明性及び硬度が高く、使用性が良好な透明ゲル化粧料、及び前記透明ゲル化粧料への利用に好適なゲル化剤。グリセリン、炭素数18~28の二塩基酸及び炭素数8~28の脂肪酸(ただし、二塩基酸を除く)を反応させることにより得られるエステル化反応生成物と、12-ヒドロキシステアリン酸と、油分とを含有することを特徴とする透明ゲル化粧料;グリセリン、炭素数18~28の二塩基酸及び炭素数8~28の脂肪酸(ただし、二塩基酸を除く)を反応させることにより得られるエステル化反応生成物と、12-ヒドロキシステアリン酸とを含有することを特徴とするゲル化剤。