See all the ads regarding herbal supplements.

Welcome @katwalk65453, It's definitely a good thing to do your own research on treatments available that claim to help or cure neuropathy. There are quite a few things that can provide relief but it's a crap shoot even when the product is on the up and up just because each of us are different and what works for one, may not work for someone else. One thing you mentioned - swelling (legs/feet?) is what I also have with my neuropathy but I'm not sure it's related. I've had neuropathy since I was in my late 40s that started in my toes and now at age 81 is in my legs but it's only the numbness and some tingling, no pain. I would talk with your doctor and maybe get checked by a cardiologist to see if the swelling is related to edema. I was diagnosed with lymphedema in my legs about 6 years ago and wear compression socks to control the swelling.

The Foundation for Peripheral Neuropathy has a good list of complementary and alternative treatments to the prescription drugs normally used - https://www.foundationforpn.org/wp-content/uploads/2020/08/Complementary-and-Alternative-Treatments-Revised-2020-final.-1.pdf.

There are also many other discussions on Connect where members have shared what helps with neuropathy. Here's a search link that lists the discussions - https://connect.mayoclinic.org/search/discussions/?search=neuropathy%20what%20helps.

Have you discussed the swelling with your doctor?

Understand the supplement industry is not regulated and they spend a lot of money in congress keeping it that way. They can claim anything. The best source of consumer funded research is Consumer Labs.