Angel real mayonnaise is made by real fresh egg , not egg powder. The main ingredients in Making real mayonnaise are imported from Sweden and France.

Mayonnaise, colloquially referred to as "mayo", is a thick, cold, and creamy sauce or dressing commonly used on sandwiches, hamburgers, composed salads, and French fries. It also forms the base for various other sauces, such as tartar sauce, fry sauce, remoulade, salsa golf & …….

It’s a Emulsion of oil and egg and normally in different shades of white and creamy color depends on the ingredients. 

In one story mayonnaise been made and started by French chefs. And in another story it started in ancient Rome by mixing olive oil and egg. Although it seems the very first recipe of mayonnaise is back to 1806.