Is it possible for me to sell product that I manufacture personally?

Hi all. I sell TPE (rubber material similar to silicon used for hobby dolls) glue that I manufacture on eBay and would like to extend that to Amazon but not sure if I would even be permitted.

The glue is something I manufacture and process chemically and sell in 20ml glass vials that I ship in a bubble envelope. People buy it for repairing their dolls. There are other TPE glues sold on Amazon but mine are far superior (they are only selling a chemical solvent that will chemically weld two pieces of TPE together where as mine contains actual TPE)

I sell maybe 5 to 10 bottles a month on eBay.

What would I need to be able to sell something like this? Also, what would my profit look like? On eBay when I sell a vial for $29 and include free shipping I’m getting $16.32 after taxes and fees. That’s before shipping which brings it closer to $12. TIA.