1. A method of making an antiperspirant active composition, comprising the steps of: I) heating an aqueous solution containing an aluminum salt having a molar ratio of aluminum to chlorine from about 0.3: 1 to about 3: 1, optionally with a buffering agent, at a temperature from about 50 ° C to about 100 ° C in a vessel under reflux for about 1 hour to about 6 hours to obtain an aluminum salt solution； ii) an aqueous sodium hydroxide solution is added to obtain an aluminum salt solution having a molar ratio of OH: Al about 2: 1 to about 2.6: 1 in order to obtain a pH adjusted aluminum salt solution having a pH of about 2 to about 5； iii) provide calcium ions； and iv) optionally adding an aqueous solution containing a zirconium compound to a pH adjusted aluminum salt solution to thereby obtain an aluminum zirconium salt solution having an aluminum to zirconium molar ratio of about 5: 1 to about 10: 1.2. The method of claim 1, wherein the provision of calcium ions is the addition of calcium hydroxide to the aluminum salt solution. The method of claim 2, wherein the provision of calcium ions is the addition of calcium hydroxide to the aluminum salt solution together with the sodium hydroxide solution. The method of claim 2, wherein the provision of calcium ions is the addition of calcium hydroxide to the aluminum salt solution prior to the addition of sodium hydroxide. The method of claim 2, wherein the provision of calcium ions is the addition of calcium hydroxide to1. Способ изготовления антиперспирантного активного состава, включающий стадии, на которых:I) нагревают водный раствор, содержащий соль алюминия, имеющую молярное соотношение алюминия к хлору от приблизительно 0,3:1 до приблизительно 3:1, необязательно с буферным веществом, при температуре от приблизительно 50°C до приблизительно 100°C в сосуде с обратным холодильником в течение от приблизительно 1 ч до приблизительно 6 ч для получения раствора соли алюминия；II) добавляют водный раствор гидроксида натрия дл
