Which is the Best HypoAllergenic Piercing Material?  

Either for freshly pierced areas or just for super sensitive areas?

I've been doing a lot of research on metal allergies and alternatives since I am allergic to: 18K gold, 14K gold, 10K gold, sterling silver (not as badly as gold, but pretty bad still), and surgical steel (the least worst out of these). I have never tried jewelry cheaper than surgical steel, so I'm not sure about other materials.

Materials I've heard of for people with allergies, but haven't yet tried:
- Titanium (if you've tried this, let me know what grade worked, they have different grades as those are different alloys)
- Niobium (another type of metal)
- PTFE aka Teflon (not metal)
- Nylon
- Glass

While glass seems like it would be the ultimate in allergy free earrings, my ears are unfortunately only 16 gauge so I cannot find glass that small. I have however found PTFE in 14 gauge which I ordered in hopes that it will fit into my ears. And I found Nylon and Niobium in standard earring size, which I think is 20 gauge. I don't really want to order anything small since I don't want to have my ears close up. By keeping them at 16G, I'll have more options for earrings I can wear once I can get my ears healed so that I can wear regular earrings for a few hours at a time.

If you know of any good stores (online or otherwise) or could at least recommend what type of metal (or non-metal) helped you, please let me know! I would very much appreciate it.