Our donkey milk soaps are made with the best quality ingredients and essential oils. Light fragrances to relax or rejuvenate. Donkey Milk s hydrating and has four times the amount of vitamin C than cow's milk. The many vitamins, proteins, minerals, and essential fatty acids make this ingredient a potent and effective one for your skin. It's hydrating and brightening, and it's believed to help with eczema, acne, and psoriasis.