I do NOT have first-hand experience with this product.
Indeed, this treads within snake-oil territory. In other words, it may just waste your time and money...or worse. So keep this in mind.
The reason I brought it up requires a back story. If you don't want to read, stop reading now.
People at work and social settings see the way I look, my overall health, and the fact that I don't use gear and I've become this de facto source for information. As tiresome as this can be, it's understandable. After all, any objective individual will appreciate someone who walks the talk.
"Hey, my bf is looking to put on some muscle. Can you give him some tips?"
"I have a 20-year reunion coming up and want to lose some weight. What do you think about this diet?"
"Am I doing this exercise right?"
You get the picture...
Some questions are easy to answer. Every once in a while, however, I'll get one that throws me for a loop.
A co-worker approached me regarding chronic nerve pain in her hands. She said she's tried Lyrica but hated the side effects. She was at her wit's end. Now she's aware I don't have any medical training but word apparently got around regarding the quality of answers I give people. I suppose she figured she had nothing to lose.
I suggested the most logical approach: seek out a specialist.
Based on what she told me, I gathered the docs relegated her as someone who doesn't respond. And she suspected (most likely she is correct in this), that she was marginalized.
I told her I'd research the subject (pretty fascinating stuff, btw) and suggested the aforementioned product - with the usual disclaimers.
It's going on four months now and she claims she's noticed a significant difference. It hasn't completely gone away but it's no longer debilitating.
Obviously, this can be placebo. And it's a sample size of one. However, like her, you're at a point now where there are no easy fixes.
If you decide to try this or anything similar, I'd be very interested in updates.