Egg powder products are essentially dried whole egg. Along with low purity IgY they also have high levels of fat, odor, taste and other impurities. These products also require you to consume large quantities to achieve meaningful benefits. Vector450 with Muno IgY™ contains the highest purity of IgY available to consumers today. It is generally 10X more pure than other IgY-based products. Vector450 with Muno IgY™ is shelf stable for up to two years, while powdered egg products must be refrigerated after opening and consumed in a short period of time.