The main ingredients of KEWPIE Mayonnaise are oil, egg, and vinegar. It is an “egg yolk type” mayonnaise, which contains egg yolk instead of whole egg. KEWPIE Mayonnaise contains 4 egg yolks per 500g. The amino acids yielded from the protein of the egg yolks is a key factor for KEWPIE’s tasty, savory flavor. It goes well with salad, sandwiches, sushi, and much more.