Microdermal Jewelry Microdermal & Dermal Piercings?

Microdermal & dermal Piercings? - microdermal jewelry

Well, I'm trying to understand exactly what they are and what is the difference.
I saw on YouTube, but I would like more information about them.
Does anyone know websites, what they are and how they work, to explain?
You see, I have my anti eyebrow pierced and I'm afraid to reject it. but my favorite piercing. So, if you do not want to be different Microdermal or dermal (IDUs) piercings. and can even scarring? What is the process of this kind of piercing? How we take care of it later? Is it safe? Later in the way how to remove them? and it is easy to change the jewelry? any other information you think would be very important.
Thank you!