A platform system for customized skin care products includes a network platform, a raw material database, and a control unit. The raw material database includes at least an active ingredient raw material database and an antiseptic ingredient raw material database. The control unit includes a formula combination module. The control unit transmits the plurality of active ingredient raw materials of the active ingredient raw material database and the plurality of antiseptic ingredient raw materials of the antiseptic ingredient raw material database to the network platform to provide a user to select at least one active ingredient raw material and at least one antiseptic ingredient material. The formula combination module of the control unit determines whether a skin care product combination is appropriate according to a dispensing rule, and the skin care product combination includes the at least one antiseptic ingredient raw material and the at least one active ingredient raw material selected by the user.一種客製化的保養品的平台系統包含一網路平台、一原料資料庫及一控制單元。該原料資料庫至少包括一有效成分原料資料庫及一防腐成分原料資料庫。該控制單元包括一配方組合模組。該控制單元將該有效成分原料資料庫的多個有效成分原料資料及該防腐成分原料資料庫的多個防腐成分原料資料傳送至該網路平台，以提供一使用者選擇至少一有效成分原料及至少一防腐成分原料，該控制單元的該配方組合模組根據一調配規則，判斷一保養品組合是否適當，該保養品組合包括該使用者所選擇的該至少一有效成分原料及該至少一防腐成分原料。
