What is it exactly?
How it works?
As I said, google it!
https://www.indigo-herbs.co.uk/natural-health-guide/benefits/quebra-pedra
https://riohealth.co.uk/blogs/news/what-is-quebra-pedra
I was suffering regular bouts of kidney stones, probably 2 or 3 times a year for 3 years. The NHS couldn't do anything & couldn't find a reason for them forming. I was admitted to hospital twice in agony, all they could do is feed me morphine & wait for the 6mm stone to come out!

I heard about the quebra pedra online & tried it out.
I took the capsule form at full dose for around 6 months until I thought I was clear of stones, then cut down to one a day for 6 months.
I was also taking a mug of the tea daily, its a nice alternative to normal tea.
Probably a year or so later I felt the familiar pain in my side so I started taking the capsules & tea again. This time I passed no stones at all, the quebra pedra must have dissolved them in my kidneys!

That was probably 10 years ago & thankfully I have been stone free since. On one occasion I had some kidney pain so I took some capsules for a few weeks just in case.
Capsules
https://www.amazon.co.uk/Rio-Trading-Quebra-Pedra-vegicaps/dp/B0013GATP6
Teabags
https://www.amazon.co.uk/Rio-Amazon-Quebra-Pedra-Teabags/dp/B004RMGENO
If you shop around you might find it cheaper but those are the brands I used.