The cosmetic virtues of donkey milk are no longer to be praised, and women in Antiquity already used it as a beauty product. The milk is precious as the female only gives 5 to 6 liters per day when raising a young. At the Domaine d'Esthine of Longrais in the Manche department, the donkeys are milked manually only once a day to leave enough milk for the babies. The soaps are all handcrafted using the traditional method of cold saponification. In order to benefit from all their virtues (moisturizing, emollient, soothing, etc.), all the oils are not transformed into soap.