Is it illegal for me to use other products in my product?

I am wondering if I can run into legal hot water if I use other products in my product. I know this sounds dumb but bear with me.

I need 3 main components with my product:

1. Manuka honey
2. Medical adhesive tape
3. Absorbent bandage padding (the stuff you find in the middle of bandages)

I have already found possible manufacturers for these. However, they are not "manufacturers" per se, they are marketing their products for personal consumption. I don't know if I can get into trouble...

Is it illegal for me to use other products in my product?

from Is it illegal for me to use other products in my product?