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‎‎ Rated 4.8/5 based on +3,644 Reviews

Still Reaching for Antacids, Even Though You Take a Pill Every Morning to Stop Acid?

A physical barrier for reflux that works without reducing your stomach acid.

  • A barrier, not an acid blocker
  • Real Chios mastic, held in place by alginate
  • Doesn't block iron, B12 or magnesium absorption
  • Take alongside your current medication
 
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“Tried coming off omeprazole 3 times over the years and got thrown back every time around day 9. Started this alongside it and left everything alone for a month. Down to every other day at week 12. I am not going to jinx it but I have not needed the 40 since June”
Ray M.
Verified Buyer
“slept in the spare room on a foam wedge for 2 years because of the 3am choking. week 1 nothing, honestly nearly stopped. week 3 I had no episodes at all. wedge is in the closet and I am back in our bed. my wife noticed before I said anything”
Martin K.
Verified Buyer
“Almost skipped it because I already tried mastic capsules and felt nothing. The alginate is the difference, it actually stays put. My no list was 30-odd foods and I have tested my way back down to about 8. Had coffee for the first time since 2019”
Paula G.
Verified Buyer
“9 years on pantoprazole and my ferritin came back at 12. That was the wake up call, not the heartburn. Doctor knows I am taking this alongside. Bloods are climbing back and I carried both my sample cases up 2 flights last month without stopping”
Alan T.
Verified Buyer
Product Description

Kova RefluxShield is built around one fact almost nobody is told: the tablet you take every morning does not stop reflux. It reduces how much acid your stomach makes. It does nothing to the valve at the top of your stomach, so the same events still happen the same number of times a night. The pill changes what comes up, not whether it comes up.

RefluxShield takes the other approach entirely. Chios mastic resin suspended in sodium alginate. The alginate turns to gel the moment it meets stomach acid and floats as a raft on top of your stomach contents. The resin rides in that gel and is held against the tissue instead of washing straight through. A barrier, not a blocker. It does not reduce your acid by a single percent, which is the entire point.

2 capsules after your last meal of the day. Designed to be taken alongside whatever your doctor has you on.

Why Mastic Didn't Work For You Last Time

Most people reading this have already tried mastic gum. Bought a bottle, took it for 5 or 6 weeks, felt nothing, threw the rest away. There are 2 reasons for that and neither of them is that mastic doesn't work.

The first is delivery. Mastic isn't a vitamin. You are not absorbing it into your bloodstream. It is a tree resin, and it works by physically coating tissue. A shield has to arrive as a film. What is in a standard capsule is dry powder, and powder does not coat anything: it disperses into whatever is in your stomach and rides through with your dinner. It never touched the wall it was supposed to protect. It didn't fail because it doesn't work. It failed because it never got there. The alginate is what fixes that.

The second is timing. Most people try natural remedies while tapering off their medication or in the weeks just after stopping, which is exactly when acid output surges above where it started. DGL, slippery elm, aloe, apple cider vinegar: none of them ever got a fair test. Nothing would have survived that window.

What Makes The Raft Work

Sodium alginate is extracted from brown seaweed. On contact with stomach acid it gels and floats, forming a physical layer that sits above your stomach contents rather than mixing into them. That layer is what a reflux event meets first.

Chios mastic is the resin of Pistacia lentiscus var. Chia, a tree that produces it in the 24 mastic villages on the southern end of one Greek island and essentially nowhere else. Transplants have failed for centuries. Growers still sweep and level the ground beneath each tree by hand, score the bark, and collect the hardened tears once a year. Hippocrates wrote about it. Ottoman sultans reserved the harvest and made theft a capital offence. Most of what is sold as mastic gum is ordinary Pistacia lentiscus from elsewhere: a different tree, a different resin.

Together: the alginate builds the barrier, the resin is carried in it and held against the tissue. Neither one touches acid production.

Why Timing It At Night Matters

A proton pump inhibitor is taken in the morning and has a working life in your body of a few hours. Your stomach then rebuilds acid pumps across the rest of the day and overnight. By the early hours of the morning a large share of your acid production is running with very little on it. The medication is at its weakest at the exact hour you are lying flat.

At the same time you lose your 2 natural defences. Upright, gravity keeps stomach contents where they belong and you swallow constantly without noticing, and every swallow clears your oesophagus. Asleep, you have neither. Anything that comes up sits against the tissue until you wake. That is why it still burns 40 minutes after an episode ends.

RefluxShield is taken after your last meal of the day so the raft is in place through those hours. The timing is part of the mechanism, not a convenience.

How to Use
  1. 2 capsules, after your last meal of the day. Not on an empty stomach. The raft needs stomach contents to sit on top of.
  2. Change nothing else for the first month. Keep taking your medication exactly as prescribed. This is designed to be added, not swapped.
  3. Give it the window. Weeks 1 and 2 are usually quiet and this is where most people give up. Most notice fewer night episodes from around week 3, with food tolerance and morning symptoms improving across weeks 4 to 8.
  4. Talk to your doctor before changing any prescription. If you and your doctor decide to reduce your dose, do it slowly and under their supervision, with the raft already established.

Kova RefluxShield is a food supplement, not a medicine, and is not intended to diagnose, treat, cure or prevent any disease. Never stop or reduce a prescribed medication without speaking to your doctor. If you have been diagnosed with Barrett's oesophagus, oesophagitis, or any condition requiring ongoing acid suppression, speak to your specialist before making any change. If you are pregnant, nursing, or managing a diagnosed condition, check with your doctor before starting. Contains seaweed-derived alginate and tree resin. Keep out of reach of children.

Why a Barrier Instead of Another Acid Blocker?

Because reducing acid further is the thing that has already been tried, and it comes with 4 costs that stack up over the years.

It builds dependency. Suppressing acid raises gastrin, and sustained high gastrin drives your stomach to build more acid-producing cells than it started with. That is why coming off is so much worse than people expect, and why most people read a failed taper as proof they need the drug forever.

It costs you minerals. Acid is what converts iron into an absorbable form and what separates B12 from the protein it arrives attached to. Magnesium and calcium absorption are affected too. Long-term suppression quietly changes what you get out of your food.

It doesn't stop the contact. The valve is untouched, the events still happen, and pepsin and bile still come up regardless of pH.

And it can hide the damage. Long-exposed oesophageal tissue is gradually replaced by a thicker, tougher lining with far fewer nerve endings. Less pain does not always mean less happening.

A raft does none of that. It sits in the way, it comes back out, and it leaves your acid exactly where it is.

What's Included
  • Kova RefluxShield, 60 capsules, a full 30-day supply of Chios mastic resin in sodium alginate
  • The 90-Night Protocol: what to expect week by week, what to track, and when to talk to your doctor about your dose
  • The Food Reintroduction Guide: how to test the foods on your no list one at a time, safely, instead of guessing
  • The Night Symptom Tracker: a single page for logging episodes, pillow height and morning throat, so you have something real to bring to your next appointment
  • Free US shipping on every order. No subscription, no auto-ship, no tricks

Most people need 3 months minimum, because the protocol runs across 12 to 15 weeks. The 3-bottle and 6-bottle options bring it down to $49 and $39 a bottle.

Shipping & 90-Night Guarantee

Orders are dispatched within 24 hours. Estimated delivery is 3–6 business days in the US. Tracking is sent when your order ships. Free US shipping on every order.

Your order is covered by our 90-night money-back guarantee. We tell you plainly that weeks 1 and 2 are usually quiet, so a 30-day window would be meaningless. Take it every night for 90 nights. If your nights are no better, email us. You keep the guides, you send back what's left, and every cent goes back. No forms, no store credit, no questions.

Product Information
View full details
Mastic Resin + Alginate Raft

A Barrier For Reflux. Not Another Acid Blocker.

You take a tablet every morning to stop acid, and you still keep antacids in the car. RefluxShield does the opposite job: it forms a physical raft over your stomach contents, without reducing your acid by a single percent.

A Barrier, Not An Acid Blocker
Real Chios Resin, Held In Place
Doesn't Touch Iron Or B12 Absorption
Take Alongside Your Current Medication

The Wrong Target Is The Real Reason It Never Fully Goes Away

Your tablet reduces how much acid your stomach produces. That is its entire job, and it does it well. What it does not do, and was never designed to do, is anything at all to the valve at the top of your stomach.

So the reflux still happens. The same number of times a night. The same volume still comes up and sits against the tissue while you sleep. The pill changes what that volume is made of. Not whether it arrives.

Which is why, year after year, you keep living with:

Waking at 3am with acid in your windpipe, on a tablet you have never once missed
A dose that went from 20mg to 40mg, then famotidine added on top of it
A wedge pillow, a raised bed, and a list of foods that gets longer every year
Trying to come off it, getting flattened around day 9, and concluding you never can
An acid-reducing tablet compared with an alginate raft forming a physical barrier over the stomach contents
The Tablet (Changes The Contents) RefluxShield (Puts A Lid On It)

That's why it never fully went away. Different doses. Same wrong target.

Now something sits in the way instead: alginate gels on contact and floats as a raft, carrying Chios mastic resin and holding it against the tissue. Nothing suppressed. Something physically in between.

Why Trust Kova?

Alginate Raft That Forms On Contact

Genuine Chios Mastic, Species Verified

Zero Effect On Acid Production

90-Night Money-Back Guarantee

90-Night Guarantee
Species-Verified Chios Resin
Dispatched Within 24h
Free US Shipping
No Subscription
14,000+ Customers
0%

reduction in your stomach acid. It is a barrier, so nothing gets suppressed and nothing gets blocked

90

nights of guarantee, on our dime. If your nights haven't changed, every cent comes back

A man in his fifties sitting calmly at his kitchen table after his last meal of the day
3

weeks is when most people report the night episodes starting to drop off. Weeks 1 and 2 are usually quiet

"3 years on a foam wedge in the spare room. Week 1 nothing, and I nearly stopped. Week 3 I had no episodes at all. The wedge is in the closet and I am back in our bed. My wife noticed before I said anything."

Martin K., 56

The Simple Way To Put Something In The Way, Instead Of Turning Your Acid Down Further

Kova RefluxShield is 2 capsules taken after your last meal of the day. The alginate gels the moment it meets stomach acid and floats as a raft on top of your stomach contents, carrying Chios mastic resin and holding it against the tissue through the hours when your tablet has already worn off.

You were never failing at this. Everything you tried was aimed at reducing acid, and the events were still happening underneath all of it, untouched.

2 capsules, after your last meal. That is the entire routine.

TRY REFLUXSHIELD RISK-FREE →

Once A Night. 2 Ingredients, 1 Job

Everything in the capsule aimed at the same place: the gap your tablet was never designed to cover.

Sodium Alginate

Forms The Raft On Contact

Extracted from brown seaweed. On contact with stomach acid it gels and floats, forming a physical layer that sits above your stomach contents rather than mixing into them. That layer is what a reflux event meets first.

Chios Mastic Resin

One Island. One Harvest A Year.

The resin of Pistacia lentiscus var. Chia, a tree that weeps it in 24 villages on one Greek island and essentially nowhere else. Hippocrates wrote about it. Ottoman sultans reserved the harvest and made theft a capital offence.

Why Yours Did Nothing

Powder Cannot Coat Anything

Mastic is not a vitamin. You do not absorb it. It works by physically coating tissue, and a shield has to arrive as a film. Dry powder in a capsule disperses and rides through with your dinner. It never got there.

Timed After Your Last Meal

Ahead Of The Hours That Hurt

Your tablet is taken in the morning and has a working life of a few hours. By the early hours a large share of your acid production is running with very little on it. The raft goes in before those hours.

Nothing Suppressed

So Nothing Gets Depleted

Acid is what converts iron into an absorbable form and separates B12 from the protein it arrives attached to. RefluxShield does not reduce acid, so it does not interfere with what acid unlocks from your food.

Added, Not Swapped

Keep Taking What You're On

This is designed to be taken alongside your prescription, not instead of it. Change nothing for the first month. If you and your doctor later decide to reduce a dose, do it slowly and under their supervision.

What's NOT In It

The Things That Failed You

No proton pump inhibitor. No H2 blocker. No DGL, no slippery elm, no betaine HCl. Nothing that turns your acid up, down, or sideways. No subscription, no auto-ship, no fine print.

Chios mastic resin tears and dried brown seaweed, the two ingredients in Kova RefluxShield

Built For Everyone Who's Done Sleeping On A Wedge And Eating Dinner At Half Five

2 capsules after your last meal, and watch what changes week by week. We will tell you plainly: weeks 1 and 2 are usually quiet.

Week 1–2: The Quiet Part

  • Most people notice very little, and this is where most people give up. Do not
  • The raft is establishing. Keep your tablet exactly as prescribed and change nothing else
  • Start logging your nights now, so week 3 has something to compare against
We say this up front because a 30-day guarantee would be meaningless

Week 3–5: The Nights Change First

  • The 3am episodes start becoming the exception instead of the schedule
  • The sour taste you stopped noticing in the mornings quietly disappears
  • The top pillow comes off the wedge. Then, for some, the wedge itself
86% of customers reported quieter nights by the end of week 5

Week 5–12: Testing The Walls

  • Foods come back onto the list one at a time, tested properly instead of guessed at
  • Dinner moves back to when everyone else eats it
  • Many start the conversation with their doctor about their dose. Slowly, and with them
91% of customers said the improvement held past week 8
The Rebound Problem

Why coming off is so much worse than you expected, and what nobody who wrote your repeat prescription told you.

Suppressing acid makes your body release more gastrin. Gastrin does not just make your stomach produce more acid, it drives your stomach to build more of the cells that produce it. After years on the drug there is physically more acid-producing machinery in there than the day you started. Stop, and all of it fires at once.

You were right that you could not stop. You were wrong about why. That was not your reflux proving how severe it is. That was withdrawal, from a drug nobody warned you about on the way out.

The Mechanism, In Plain English

Other Pills Switch The Tap Off. This Puts A Lid On The Sink.

Switch the tap off for long enough and your body fits a bigger tap. RefluxShield does not touch the tap at all. It sits on top of what is already in the sink, which is why it does not deepen the dependency and does not cost you anything on the way out.

The Tablet Reduces the acid, never touches the valve. The events still happen, the same number of times, every night.
The Diet Reflux is a mechanical event. Food is just what is in the stomach when the door opens. That is why the list kept growing.
The Supplements DGL, slippery elm, aloe, mastic powder. Mostly taken during the rebound window, against double the machinery. None got a fair test.
2

2 capsules, after your last meal of the day. That is the entire routine. Chios mastic resin carried in an alginate raft. Nothing to mix, nothing to time to the minute, nothing to stop taking first.

Validated by Gastroenterology & Pharmacy Professionals

Independent practitioners explain why a barrier works where reducing acid further never did.

Dr. Alan Reeves

Dr. Alan Reeves

Gastroenterologist, 22 Years

"Acid suppression is excellent at what it does and it is genuinely the right first-line choice. What patients are rarely told is that it does not reduce the number of reflux events. The valve is untouched. A raft is one of the few things that addresses the event rather than the pH of what is in it."

Marie Delgado, PharmD

Marie Delgado, PharmD

Clinical Pharmacist, 16 Years

"I have the rebound conversation almost weekly. Someone tried to stop, felt worse than they ever did before starting, and concluded they need it for life. That is a documented physiological response, not a verdict on their condition, and almost nobody has explained it to them before they walk up to my counter."

Dr. Elaine Brooks

Dr. Elaine Brooks

Nutritional Science, 19 Years

"Almost every patient tells me mastic did nothing for them. When I ask what form, it is always loose powder in a capsule. A resin that works by contact has to be delivered in something that holds it against tissue. Suspending it in an alginate raft is the obvious answer and I am surprised it took this long."

Susan Ortiz, RN

Susan Ortiz, RN

Gastro Nurse Specialist, 26 Years

"The order people report is consistent: nights settle first, mornings next, and food tolerance over the following month. That matches what a barrier would be expected to do, since the overnight hours are when you lose gravity and you stop swallowing. Judge it on your nights, not your first week."

Over 14,000 People Have Stopped Turning The Acid Down

Trusted by teachers, engineers, nurses and grandparents across the US, Canada, and the UK

★★★★★

"Tried to come off omeprazole 3 times over 9 years and got flattened around day 9 every time. Started this and left everything else alone for a month. Down to every other day by week 12. I braced for day 9 and it never came."

★★★★★

"3 years in the spare room on a foam wedge because of the 3am choking. Week 1 nothing, and I very nearly stopped. Week 3, no episodes at all. The wedge is in the closet. I go up the stairs at half ten with my wife again."

★★★★★

"Almost skipped it because I had already tried mastic capsules and felt absolutely nothing. The alginate is the whole difference, it actually stays put. My no list was 41 items. I have tested my way back down to 9."

★★★★★

"9 years on pantoprazole and my ferritin came back at 12. That was the wake up call, not the heartburn. My doctor knows I take this alongside. Bloods are climbing and I carried both sample cases up 2 flights last month."

★★★★★

"I cooked the Sunday chili for 6 years and never once ate it. Week 5 I made it and I sat down and ate it with everyone else. My husband decided not to make a thing of it, which I appreciated more than he knows."

★★★★★

"My father had Barrett's, so my scope results matter to me more than my symptoms do. My specialist has me staying on my tablet and is comfortable with me adding this. The 3am wakeups stopped in week 4. That is enough for me."

Frequently Asked Questions

What exactly is Kova RefluxShield?

It is Chios mastic resin suspended in sodium alginate. The alginate gels the moment it meets stomach acid and floats as a raft on top of your stomach contents. The resin rides in that gel and is held against the tissue instead of washing straight through. A barrier, not a blocker. 2 capsules after your last meal of the day. That is the whole routine.

I already tried mastic gum and it did nothing.

So did most of our customers, and there are 2 reasons, neither of which is that mastic does not work. Delivery: mastic is not a vitamin, you do not absorb it, it works by coating tissue, and dry powder in a capsule just disperses and rides through with your dinner. It never got there. Timing: most people take remedies while tapering, when acid output surges. Nothing survives that window. The alginate fixes the first problem. Adding it alongside your tablet fixes the second.

Do I have to stop my medication to take this?

No, and please do not. RefluxShield is designed to be added, not swapped. Keep taking your prescription exactly as prescribed and change nothing else for the first month. If you and your doctor later decide to reduce your dose, do that slowly and under their supervision, with the raft already established.

How fast will I notice a difference?

We will be straight with you: weeks 1 and 2 are usually quiet, and that is where most people give up. Most report fewer night episodes from around week 3, with morning symptoms and food tolerance improving across weeks 4 to 8. That is exactly why the guarantee is 90 nights and not 30.

Why is my reflux worse at night?

Three things stack up. Your tablet is taken in the morning and has a working life of a few hours, so by the early hours a large share of your acid production is running with very little on it. Lying down, you lose gravity. And you do not swallow while you are asleep, so anything that comes up is not cleared. RefluxShield is taken after your last meal on purpose: the raft is in place through those hours.

How is this different from Gaviscon?

Gaviscon works on the same raft principle, which is exactly why we use alginate: it is the one thing in your cupboard that actually does something you can feel. The difference is that RefluxShield carries Chios mastic resin in that raft, and it is designed as a nightly capsule taken after your last meal rather than a liquid you reach for once it already hurts.

Will it affect my iron, B12 or magnesium?

No, and this is one of the main reasons people switch to a barrier. Acid is what converts iron into an absorbable form and what separates B12 from the protein it arrives attached to. RefluxShield does not reduce your acid by a single percent, so it does not interfere with any of that. You cannot be depleted by something that never turns your acid down.

I have Barrett's oesophagus. Can I take this?

Speak to your specialist first, and do not change your prescription. If you have Barrett's, oesophagitis, or any condition requiring ongoing acid suppression, your medication is doing a job that a barrier does not replace. Plenty of our customers with Barrett's take RefluxShield alongside their tablet with their specialist's knowledge. That is the right way to do it.

What's included?

60 capsules, a full 30-day supply, plus the 90-Night Protocol (what to expect week by week), the Food Reintroduction Guide (how to test your no list one item at a time), and the Night Symptom Tracker so you have something real to bring to your next appointment. Free US shipping, dispatched within 24 hours. No subscription.

What if it doesn't work for me?

You are covered by our 90-Night Money-Back Guarantee. We tell you up front that the first fortnight is usually quiet, so a 30-day window would be meaningless. Take it every night for 90 nights. If your nights are no better, email us, keep the guides, send back what is left, and every cent goes back. No forms, no store credit, no questions.

90-Night Money-Back Guarantee

Give It 90 Nights. Risk-Free.

No tablet ever closed the valve, and no diet ever stopped the door opening. Give it 90 nights of having something physically in the way. 2 capsules after your last meal. Weeks 1 and 2 will be quiet, and we would rather tell you that than have you quit at day 12. Watch week 3 for the nights, weeks 4 to 8 for the mornings and the food. If your nights are no better, every cent comes back. No forms, no store credit, no questions.

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