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If You're Doing Everything Right and Still Passing Stones — It's Probably Not Your Discipline.

The prevention advice almost everyone gets is aimed at two things. Stone formation runs on four. Here's the Amazonian plant that's been used on the part nobody mentions.

Hero imageThe water jug on the kitchen counter, morning light. Lived-in, ordinary, no people.

You refill the jug twice a day. You've done it so long you've stopped counting it as effort — it's just something the day contains now, like locking the door.

The printout is still in the kitchen cabinet. The one they sent you home with. Oxalate content, high to low. You know the top of that list without looking: spinach, almonds, chocolate, tea. You stopped buying the almonds two years ago.

You read the back of things in supermarkets now. Not for calories. For a word almost nobody else in that aisle has ever had to look for.

And you know the ceiling tiles in your local emergency department, because somewhere around 2am — after the worst of it, when the drugs finally took and you could think again — you started the audit. Going back meal by meal through the last three weeks. Looking for the one that did this. The slip. There's always a candidate, because you're the one holding the magnifying glass.

And none of it has stopped them.

Everyone makes crystals in their urine. People who have never had a stone and never will. What decides whether those crystals become a stone is whether they clump together once they form. Water dilutes. Diet limits what goes in. Neither one is aimed at the clumping.

And there's a reason almost nobody has ever talked to you about that step. When researchers looked at 28,836 patients classified as high-risk stone formers, only 7.4% had ever received a metabolic evaluation — the 24-hour urine test that shows what your urine is actually made of. Nobody is at fault in that number, and it isn't a comment on anyone's doctor. Urology is genuinely excellent at the stone in front of it: the imaging, the scope, the pain. It's the interval — the years in between, when there's no stone to point at — where the system is thin. That stretch is where you've been living.

If that's your routine, this is worth eight minutes.

Two Kinds of Prevention. Check Which One You've Been Doing.

Column A

Aimed at volume and intake

  • Drink more water
  • Cut spinach, almonds, chocolate, tea
  • Lemon water
  • Watch the sodium
Column B

Aimed at your urine chemistry

  • Whether crystals clump once they form
  • Citrate levels
  • Urine pH
  • The oxalate your body makes on its own
If everything on your list is in the left column, that's not a discipline problem. That's a coverage problem.
★★★★★

"I had the printout on my fridge for four years. I could tell you the oxalate content of almost anything in a supermarket, and I was drinking so much water the people at work made jokes about it. I was doing everything they told me to do. And I still ended up in the same chair in the same department at two in the morning, running the same audit about what I'd eaten. What changed for me with Stone Clear wasn't dramatic — it was that for the first time in four years I was doing something on an ordinary Tuesday. Not reacting to something. Not waiting for the next one. The morning glass takes about forty seconds, and it's the first thing in a long time that felt like it was pointed at the actual problem instead of at my willpower."

— Marianne T., 54, Sacramento, CA

Six actives. Four ways. Every dose on the label.

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Everyone Makes Crystals. That Was Never the Variable.

Calcium and oxalate meet in the urine of essentially every person alive, and tiny crystals form. Routinely. In people who have never had a stone in their lives. If forming crystals were enough to cause one, everyone would have them.

The variable is what happens in the seconds after. Whether those crystals drift apart and leave quietly — or find each other, clump, and stay.

Your urine isn't a passive bystander in that. It carries natural defenses against crystals sticking together, and people who form stones often carry less of them. Which is the sentence that reframes four years of blaming yourself:

You're not short on willpower. Your urine is short on defenses.

And that's why perfect execution of the water and the food list can leave you exactly where you started. Both are aimed at the ingredients. Neither is aimed at the clumping.

Low inhibitor levels are common among stone formers, but they're not something you can know about yourself from an article. A 24-hour urine collection ordered by your doctor is how it's actually measured — a reasonable thing to ask about at your next appointment.

Where Each Lever Stops

  • Water — raises volume, lowers concentration. The best-evidenced thing you can do, and worth doing every day. Doesn't touch the clumping.
  • Cutting oxalate foods — lowers what you take in. Your body makes its own regardless of what's on your plate.
  • Potassium citrate — genuinely correct, guideline-recommended, and if you're prescribed it, keep taking it exactly as directed. One mechanism out of four.

The part nobody mentions

The Plant They Named After the Job

Across the Amazon basin and up into the Peruvian highlands, there's a small green plant that grows where nobody planted it — roadsides, field edges, the cracked ground beside a garden wall. A weed, more or less. Completely ordinary there. Almost unknown here.

The people who live alongside it have a name for it.

chanca piedra
chanca — Quechua, to break  ·  piedra — Spanish, stone
“stone breaker”

Not a brand name. It's what the plant has been called for centuries — two languages layered on top of one another the way they get layered after a conquest — and it earned the name from what generations of people have traditionally reached for it for.

And what it's been studied on is the clumping. Not volume. Not diet. The exact step from a moment ago — whether crystals stay separate or find each other. In the laboratory, researchers added the plant's extract to human urine and then triggered crystals to form. The crystals still formed; the extract didn't stop that, and nobody claims it does. What changed was what they did next: they came out smaller, and they aggregated less. In people, the most rigorous work to date is a randomized, placebo-controlled trial in 69 calcium stone formers.

Why you've never heard of it. Not a conspiracy and nothing suppressed. It's a plant that grows wild on another continent, used for generations by people whose knowledge largely wasn't written into Western medical curricula. American medicine is excellent at the stone in front of it. It has just never been especially curious about what gets simmered on a stove in Belém.

Which is also why the form matters. The traditional preparation isn't a capsule — it's a decoction. The plant simmered in water and drunk. Dry powder pressed into a capsule isn't a smaller version of that; it's a different thing. Stone Clear is a drink mix because that's the form the centuries are built on — and because every dose goes down with a full glass of water, so the best-evidenced intervention in the field stops being a separate act of discipline you have to remember at 4pm.

And not all of it is the same. Most chanca piedra on the shelf is unstandardized whole-plant powder at an undisclosed dose, with nothing else in the bottle to work alongside it. The plant is the same plant. What you're actually handed varies enormously.

The plantChanca piedra growing wild at a roadside in Peru or Brazil — warm heritage treatment, the visual anchor of the page.

Then the Formula That Completes It

Chanca piedra at a real, standardized dose — and around it, the chemistry that step happens in.

  • Chanca Piedra 500mg — standardized and disclosed, aimed at the clumping step.
  • Potassium Citrate 810mg · 7.5 mEq — the inhibitor urologists actually measure.
  • Magnesium Citrate 375mg · 5 mEq — more citrate, plus magnesium binds oxalate. ~60mg elemental.
  • Sodium Citrate 200mg · 2 mEq — completes the citrate load and the pH side of it.
  • Vitamin B6 15mg — a required cofactor in the pathway that handles oxalate your body makes internally.
  • IP6 (Phytate) 200mg — the compound in whole grains and beans, studied as a crystallization inhibitor.

Across the three citrate salts, roughly 15 mEq of alkali citrate in the morning glass. Citric acid is in there too, as the acidulant that makes it drinkable — it's on the panel, but it isn't one of the actives.

Six actives. Four ways. Every dose disclosed.
Product in useThe stick pack torn open beside a full glass of water on a morning counter — the decoction argument, made visually.

What the Research Says

Added to human urine in the lab, chanca piedra extract produced smaller crystals that aggregated less — without stopping crystals forming.
Barros ME, Schor N, Boim MA. Urol Res. 2003;30(6):374–379. In vitro, human and rat urine. (PMID: 12599017)
A randomized, placebo-controlled trial in 69 calcium stone formers examined the plant's effect on urinary chemistry.
Nishiura JL, Campos AH, Boim MA, Heilberg IP, Schor N. Urol Res. 2004;32(5):362–366. (PMID: 15221244)
20–60% of stone formers have low urinary citrate — under 320mg a day.
Zuckerman JM, Assimos DG. Rev Urol. 2009;11(3):134–144. (PMID: 19918339)
Citrate and magnesium are the only two inhibitors consistently found to be excreted in lower amounts by some calcium stone formers.
Khan SR, Pearle MS, Robertson WG, et al. Nat Rev Dis Primers. 2016;2:16008. (PMID: 27188687)

These describe published research on ingredients and populations — not this product, and not what it will do for you. Laboratory and animal findings do not establish an effect in people. Individual results vary. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

The First 90 Days

This isn't a countdown to a result. It's the arc of a habit becoming ordinary — which, after years of prevention that felt like a second job, is its own kind of relief.

Weeks 1–3 · The routine lands

One stick, 8oz of water, same time every morning. That's the whole ask. The first stretch is just attaching it to something you already do, so it stops being a decision.

Weeks 4–6 · It stops being a decision

The travel pack goes in the bag without a thought. It's moved into the same mental category as brushing your teeth — which is exactly where a daily habit needs to end up.

Weeks 7–9 · You stop white-knuckling the water

The morning glass is the anchor and the rest of the day goes back to normal drinking. For a lot of people this is the first stretch in years where hydration isn't a running scoreboard.

Weeks 10–12 · It's off your mind

The quietest one, and the one people notice only in hindsight: you're not running the calculation every time your back twinges. Not because anything's been promised to you — because you're no longer standing in the gap with nothing in your hands.

This describes the arc of building a daily routine, not medical outcomes, stone recurrence, or results of any kind. Stone Clear is a dietary supplement and is not a treatment for kidney stones or any other condition. Individual results vary.

The Finish-It Guarantee

Use every stick. Take all 90 days. If it isn't for you, tell us and we'll refund it in full — no questions, and no need to send an empty box back. We'd rather you actually finish the routine than half-try it and wonder.

What People Say About the Routine

★★★★★

"I'd built my whole life around avoiding the next one — what I ate, what I drank, whether I'd book anything more than an hour from home. Taking something every morning that isn't a reaction to something has genuinely changed how I think about all of it. It's the first part of this that's felt like mine."

— Daniel R., 47, Columbus, OH

★★★★★

"The water was the part I could never keep up. I'd start strong in the morning and by two in the afternoon I'd have forgotten entirely. Now the glass comes with the stick and I just drink it. That sounds like a small thing. It was not a small thing for me."

— Priya N., 51, Round Rock, TX

★★★★★

"My wife noticed before I did. She said I'd stopped narrating every twinge in my back to her. I hadn't even realised I was doing it. That running commentary in my head is just quieter than it used to be."

— Tom B., 58, Lancaster, PA

Individual results vary. These are individual experiences and are not a guarantee of specific results.

Common Questions

What exactly is Stone Clear?

A daily drink mix for kidney support, built around 500mg of standardized chanca piedra with six actives in total at disclosed doses, aimed at four parts of your urine chemistry — the clumping step, citrate, pH, and oxalate. One stick in 8oz of water each morning. It's a dietary supplement, not a medicine, and it's designed to sit alongside whatever your doctor already has you doing.

Can I take it if I'm already on prescription potassium citrate?

This is the most important question here, so here's the direct answer: talk to your doctor or pharmacist before combining them, and don't change a prescription on your own. Prescription potassium citrate is guideline-recommended and it works — if you're on it, that's a good thing, and you should keep taking it exactly as directed. Because Stone Clear also contains citrate salts, your prescriber is the right person to look at the total picture.

How do I take it?

One stick stirred into a full 8oz glass of water, once a day. Most people do it in the morning because it's easiest to attach to something you already do. The full glass isn't a suggestion — the water is part of how the routine is meant to work.

How does it taste?

Citrus-forward and lightly tart, which is what happens when your actives are citrate salts. It's formulated to be something you'll finish every morning for 90 days without bracing yourself — a daily habit that tastes bad is a daily habit you quietly abandon in week three.

Can I take it during an attack?

If you're passing a stone or in acute pain, see a doctor — that's not a situation for a supplement. Severe pain, fever, vomiting or blood in the urine all need proper medical attention, quickly. Stone Clear is built for the ordinary days in between, not for an emergency. Please don't use it as a reason to delay care.

Is it safe? Any side effects?

The ingredients are common dietary supplement components at everyday doses. The most frequently reported effect with citrate salts is mild digestive upset, which taking it with a full glass of water and some food usually settles. That said: if you have kidney disease, are on a potassium-restricted diet, take potassium-sparing diuretics, ACE inhibitors or ARBs, are pregnant or nursing, or are managing any medical condition — check with your doctor first. That's a genuine step, not fine print, and the potassium content is the specific reason for it.

Do I need to know my stone type first?

It helps, and it's worth knowing — most stones are calcium oxalate, but not all, and the right approach genuinely differs. If you've never had a stone analyzed or a 24-hour urine collection done, both are reasonable things to ask your doctor about, and they'll tell you far more about your own chemistry than any product page can. Stone Clear is general kidney support; it isn't tailored to a stone type and isn't a substitute for that workup.

Product shotStone Clear pack, square, clean background.

Aimed at the Part Nobody Aimed At

You were never careless. You did the water, the list, the reading in the aisles — and every one of those levers was pointed at volume and intake, while the clumping step sat there untouched. This is the daily step built for that side of it.

  • 500mg standardized chanca piedra — the plant, at a disclosed dose
  • Six actives, four ways — clumping, citrate, pH, oxalate
  • ~15 mEq alkali citrate across three citrate salts
  • One stick, 8oz of water, once a day
  • Free shipping
  • 90-day Finish-It Guarantee
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References

  1. Barros ME, Schor N, Boim MA. "Effects of an aqueous extract from Phyllantus niruri on calcium oxalate crystallization in vitro." Urol Res. 2003;30(6):374–379. (PMID: 12599017)
  2. Nishiura JL, Campos AH, Boim MA, Heilberg IP, Schor N. "Phyllanthus niruri normalizes elevated urinary calcium levels in calcium stone forming (CSF) patients." Urol Res. 2004;32(5):362–366. (PMID: 15221244)
  3. Zuckerman JM, Assimos DG. "Hypocitraturia: pathophysiology and medical management." Rev Urol. 2009;11(3):134–144. (PMID: 19918339)
  4. Khan SR, Pearle MS, Robertson WG, Gambaro G, Canales BK, Doizi S, Traxer O, Tiselius HG. "Kidney stones." Nat Rev Dis Primers. 2016;2:16008. (PMID: 27188687)
  5. Milose JC, Kaufman SR, Hollenbeck BK, Wolf JS Jr, Hollingsworth JM. "Prevalence of 24-hour urine collection in high risk stone formers." J Urol. 2014;191(2):376–380. (PMID: 24018242)
  6. Pearle MS, Goldfarb DS, Assimos DG, et al.; American Urological Association. "Medical management of kidney stones: AUA guideline." J Urol. 2014;192(2):316–324. (PMID: 24857648)
  7. Borghi L, Meschi T, Amato F, Briganti A, Novarini A, Giannini A. "Urinary volume, water and recurrences in idiopathic calcium nephrolithiasis: a 5-year randomized prospective study." J Urol. 1996;155(3):839–843. (PMID: 8583588)
  8. Curhan GC, Willett WC, Knight EL, Stampfer MJ. "Dietary factors and the risk of incident kidney stones in younger women: Nurses' Health Study II." Arch Intern Med. 2004;164(8):885–891. (PMID: 15111375)

THIS IS AN ADVERTORIAL AND NOT A NEWS ARTICLE, BLOG, OR CONSUMER PROTECTION UPDATE. © 2026 Hale / Cornerstone Studio. All rights reserved.

This is an advertisement. The information provided does not constitute medical advice and is not a substitute for the advice of your doctor. Stone Clear is a dietary supplement intended to sit alongside, not replace, any prescribed care; it is not a treatment for kidney stones or any other medical condition, and no claim is made that it prevents, reduces, or stops stones. Do not start, stop, or change a prescription without speaking to your prescriber.

Persistent or severe symptoms deserve evaluation. Severe flank or back pain, fever, vomiting, or blood in the urine require prompt medical attention. If you form stones repeatedly, ask your doctor about a stone analysis and a 24-hour urine collection — that testing is how your own urine chemistry is actually assessed, and nothing here is a substitute for it.

"Stone breaker" is a traditional common name reflecting centuries of folk use of the plant. It is not a description of what this or any product does.

Individual experiences vary. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

This site is not part of, or endorsed by, Facebook or Meta Inc.

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Stone Clear — Complete Kidney Support
  • 500mg Standardized Chanca Piedra
  • Six Actives, Four Ways — Doses Disclosed
  • ~15 mEq Alkali Citrate
  • One Stick, 8oz Water, Once a Day
No Proprietary BlendFree Shipping90-Day Guarantee
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