Why Kewpie Mayonnaise is so popular basically is coming its fine ingredients. Its made with only egg yolk. The amino acids from the egg yolk added richness and smoothness to the flavour and texture. And it is naturally preserved with vinegar and salt, you can feel safe to eat it.
Vegetable oil (contains soy), egg yolk, vinegar (contains apple), salt, monosodium glutamate, spies, spices extract.