What is the Difference Between a “Toxin” vs “Filler”?

So what is the difference between a “Toxin” also called “Wrinkle Relaxer” and a Dermal Filler? Where can you apply them on the face or body? Yes, let’s strait this out once and for all, shall we?There are a few Wrinkle Relaxers (or toxins – I usually do not use that word as it sounds...