Erythrulose

If they all contain DHA as their active ingredient, which makes Clarins, Clinique, Mary Kay, Arbonne, more expensive than Jergens, Neutrogena, Coppertone, etc.? Decelor??
I know it erythrulose a bit more expensive, but what else is expensive self-tanners that is not in the store brands? I know that some also contain bronzers, but they wash in the shower. How is a spray, optimistic, or airbrush tan look more natural than the others (apart from the appearance of lines)? What makes the different color is basically what I say

You are right. They are no different. Learn how to apply self-tanner is basically the thing that makes the difference.