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  • Gotu kola
  • CM chitosan
  • Vitamins A + C

STOMACH

From $31.96 Save 20% with delivery

A digestive health supplement for daily stomach lining support.

STOMACH

Capsules
  • Supports the stomach’s protective lining
  • Vitamin C for normal collagen formation
  • Four ingredients, all named on the label
  • One capsule, twice a day. 30 days per jar.
Regular price $39.95 USD
Regular price Sale price $39.95 USD
Sale Sold out
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Prices in USD. Subscriptions renew automatically until changed or canceled. Monthly ships one jar every 30 days. Quarterly ships three jars together every 90 days.

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Ingredients

Centella asiatica extract (gotu kola), CM chitosan, vitamin A (as beta-carotene) and vitamin C (as ascorbic acid).

Centella asiatica extract and CM chitosan are listed together in one blend, so the label does not show their individual amounts. Vitamins A and C are listed with their own amounts on the Supplement Facts panel.

How to take

Take one capsule twice a day, one in the morning and one in the evening, with a light snack. Each jar holds 60 capsules, a 30-day supply.

Talk to your doctor or pharmacist before use if you are pregnant, nursing, taking medication or managing a medical condition.

Shipping & returns

Free US shipping on orders over $50. Shipping options and delivery times appear at checkout.

Every order is covered by our 45-day money-back guarantee. Read the shipping policy and refund policy for the full terms.

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Real life

Your day has enough decisions.

Meals, work and the ride home already ask for your attention. STOMACH asks for two moments: one capsule in the morning and one in the evening.

  • A woman studies a restaurant menu at a candlelit table.

    Dinner out

    The menu becomes a calculation.

    The evening capsule

    Take one with your evening snack. It belongs to your routine, not to the menu.

    Choose your delivery
  • A man pauses at his laptop in a bright office.

    At work

    Work doesn't wait for your stomach.

    The morning capsule

    Take one with breakfast, before the day starts asking for things.

    Choose your delivery
  • A woman looks out of a train window, ticket in hand.

    On the move

    The ride home feels longer.

    One jar, 30 days

    Sixty capsules in one jar. Keep it where your day starts so you never miss the morning dose.

    Choose your delivery
  • A woman sits at her kitchen table in the evening.

    After hours

    The day ends. The discomfort doesn't.

    Twice a day

    One in the morning, one at night, every day. Consistency is the plan.

    Choose your delivery

LITMUS STOMACH jar, front label facing forward.

Daily gastric support

STOMACH

Gotu kola, CM chitosan and vitamins A and C. One capsule, twice a day.

4.4/5

156 global ratings on Amazon for Amend GI™, the predecessor product

  • One capsule morning, one evening
  • Every ingredient named on the label
  • 45-day money-back guarantee

From $31.96 per jar with subscription

Choose your delivery See what is inside

How STOMACH works

Support for the stomach lining.

Your stomach makes acid strong enough to break down a steak. A layer of mucus over a single sheet of cells keeps that acid off the stomach wall, and your body renews the surface every few days. That renewal runs on structural proteins like collagen and fibronectin, and on healthy mucous membranes. STOMACH supplies four ingredients chosen for that lining.

  • Mucous membranes

    Vitamin A, as beta-carotene, supports the maintenance of normal mucous membranes, including the lining of your stomach.

  • Collagen

    Your body needs vitamin C to form collagen. Researchers have studied Centella asiatica (gotu kola) for its role in collagen and fibronectin production.

  • A protective film

    Chitosan forms protective films, which is why you find it in medical dressings. STOMACH uses CM chitosan, a water-soluble form made from shellfish chitin.

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.

Inside STOMACH

Gotu kola, chitosan, vitamins A and C.

Vitamins A and C are listed with their own amounts. Centella asiatica extract and CM chitosan share one blend line, so the label does not show their individual amounts. We would rather tell you that than dress it up.

  • Illustrative Centella asiatica leaves and dry extract on a black plate.
    Centella asiaticaGotu kola extract
  • Illustrative pale CM chitosan powder and flakes on a black plate.
    CM chitosanWater-soluble chitosan
  • Illustrative orange beta-carotene material on a black plate.
    Vitamin AAs beta-carotene
  • Illustrative white vitamin C crystals on a black plate.
    Vitamin CAs ascorbic acid

Read the label

Supplement Facts.

This is the full STOMACH label in plain text. Centella asiatica extract and CM chitosan share one 600 mg blend, so the label does not list their individual amounts.

Supplement Facts

Serving size
1 capsule
Servings per container
60
Supplement Facts for STOMACH
Ingredient Amount per serving % Daily Value
Vitamin Aas beta-carotene 678 mcg 38%
Vitamin C 90 mg 100%
Proprietary BlendCentella asiatica extract, CM chitosan (shellfish) 600 mg †

* Percent Daily Values are based on a 2,000 calorie diet. † Daily Value not established.

Other ingredients
Rice extract blend, gum fiber blend, and ground rice hulls.
Contains
Shellfish
Suggested use
Take two (2) capsules per day, preferably divided into AM and PM servings, best taken with a light snack.

What STOMACH does not do.

STOMACH does not neutralize acid or change how much your stomach makes. It is not an antacid, so do not expect fast relief the way you would from one. It does not treat any digestive disease, and it does not replace care from your doctor.

One more thing the label will not tell you: the separate amounts of Centella asiatica and CM chitosan. They share one blend line. You should know that before you buy.

What to expect

Your first 45 days.

No promises about how you will feel or when. Here is what the routine looks like, and where the guarantee comes in.

  1. Week 1

    Set the routine

    One capsule with breakfast, one with your evening snack. Put the jar where you will see it.

  2. Weeks 2–4

    Finish the jar

    One jar lasts 30 days. Your stomach lining renews every few days, so take STOMACH every day before you judge it.

  3. Day 45

    Decide

    Not for you? Email info@takelitmus.com within 45 days of purchase for a full refund to your original payment method.

How to take it

One capsule. Twice a day.

60 capsules per jar. That is 30 days of the routine.

  1. One capsule, twice a day.

    Two capsules in total each day.

  2. Morning and evening.

    One in the morning and one in the evening.

  3. With a light snack.

    Take each capsule with a light snack.

LITMUS STOMACH capsule jar.

STOMACH VS OTHER BRANDS

Compare the details.

A side-by-side look at ingredients, directions and buying terms.

STOMACH compared with OTHERS
What to compare LITMUS STOMACH OTHER BRANDS OTHERS
Named ingredients Centella asiatica extract, CM chitosan, vitamin A and vitamin C. Often zinc carnosine, licorice root (DGL), mastic gum, aloe vera or slippery elm.
Jar size 60 capsules, a 30-day supply. Varies by brand.
Daily directions One capsule twice a day, morning and evening, with a light snack. Varies by brand.
Money-back guarantee 45 days from purchase. Varies by brand.
Brand-direct purchase One-time, monthly or quarterly. Skip or cancel a subscription anytime. Varies by brand.
View purchase options

Reviews

In their own words.

4.4 / 5

156 global ratings

Amazon ratings for Amend GI™, the predecessor product

  • These were effective for me.

  • These seem to be working. Going to order again

  • Works well.

    Seems to helping my stomach.

A CLOSER LOOK

The details, up close.

See the jar and capsules where they sit during a normal day.

  • Hand holding a LITMUS STOMACH jar beside a laptop and coffee.
  • LITMUS STOMACH jar beside everyday carry items on a bed.
  • Single white capsule held in front of an open LITMUS STOMACH jar.
  • LITMUS STOMACH jar on a cafe table beside a drink.

The Litmus guarantee

Put it to the test.

100% money-back guarantee. Contact us within 45 days of purchase. Approved refunds are issued to the original payment method; bank or card processing time may vary.

How to claim

Email info@takelitmus.com within 45 days of purchase. We’ll review the request and provide the next steps. For defective, damaged or incorrect items, contact us immediately so the issue can be evaluated and made right.

Questions, answered

Stomach lining FAQ.

Ingredients, daily use, buying options and safety in one place.

What is STOMACH?

STOMACH is a daily digestive health supplement from LITMUS for stomach lining support. Each capsule combines Centella asiatica extract, CM chitosan, vitamin A and vitamin C.

Which supplement is good for the stomach lining?

Supplements sold for the stomach lining often use zinc carnosine, deglycyrrhizinated licorice (DGL), L-glutamine, aloe vera or slippery elm. STOMACH uses a different set: Centella asiatica (gotu kola), CM chitosan, vitamin A as beta-carotene and vitamin C. Vitamin A supports normal mucous membranes, and your body needs vitamin C to form collagen. Compare the labels, and ask your doctor which one suits you.

How does STOMACH support the stomach lining?

Your stomach lining is a mucus layer over a single sheet of cells, and your body renews that surface every few days. Vitamin A supports normal mucous membranes. Vitamin C is needed for collagen formation. Researchers have studied Centella asiatica for its role in collagen and fibronectin production, and CM chitosan is a film-forming fiber.

What is the gastric mucosa?

It is the medical name for the stomach lining. Its surface cells coat the stomach wall in mucus and bicarbonate, which keeps digestive acid off it. Beneath them sit a thin layer of connective tissue and a band of smooth muscle.

How often does the stomach lining replace itself?

The surface cells of the stomach lining turn over every three to five days in healthy adults. Because that renewal never stops, the nutrients the lining relies on, such as vitamin A for mucous membranes and vitamin C for collagen, matter every day.

Which foods support the stomach lining?

Your stomach lining uses nutrients from ordinary food: protein, vitamin C from fruit and vegetables, and beta-carotene from orange and dark green vegetables such as carrots, sweet potato and spinach. Regular meals, less alcohol and not smoking help too.

Which vitamins support the stomach lining?

Vitamin A helps maintain normal mucous membranes, and the stomach lining is one of them. Vitamin C is needed to form collagen, a structural protein in the stomach wall. STOMACH contains both: vitamin A as beta-carotene and vitamin C as ascorbic acid.

Is beta-carotene the same as vitamin A?

Beta-carotene is a plant pigment that your body converts into vitamin A as it needs it. The STOMACH label lists vitamin A “as beta-carotene” because that is the form in the capsule.

What does Centella asiatica do for the stomach?

Centella asiatica, also called gotu kola, is a traditional botanical. In laboratory and animal research, its compounds, such as asiaticoside, have been studied for their effects on gastric mucus and on collagen production. Human research on the stomach is limited, and we would rather say so than overstate it.

What is CM chitosan?

Chitosan is a fiber made from chitin, the material in shellfish shells. It forms thin protective films, which is why it is used in medical dressings. CM (carboxymethyl) chitosan is a water-soluble form. Some chitosan products are sold for weight loss; STOMACH is not one of them.

Does chitosan have side effects?

Most people tolerate chitosan well. The side effects reported most often are mild and digestive, such as constipation, bloating or nausea. Talk to your doctor before use if you are pregnant, nursing or taking medication.

What ingredients are in STOMACH?

Centella asiatica extract (also called gotu kola), CM chitosan, vitamin A as beta-carotene and vitamin C as ascorbic acid. Centella and CM chitosan are listed together in one blend, so the label does not show their individual amounts.

How and when should I take STOMACH?

Take one capsule twice a day, one in the morning and one in the evening, with a light snack. Each jar holds 60 capsules, a 30-day supply, which is why monthly delivery sends one jar every 30 days.

How long until I notice a difference?

We will not promise a timeline, because everyone is different. Take STOMACH every day for the full 30-day jar before you judge it. If it is not for you, the 45-day money-back guarantee covers you.

Can I take STOMACH with medication?

Ask your doctor or pharmacist before you combine STOMACH with any medication, including acid reducers. STOMACH is a dietary supplement and does not replace a prescribed treatment.

Is it safe to take Centella asiatica every day?

STOMACH is made for daily use at the label directions. Centella asiatica is generally well tolerated; the side effects reported most often are stomach upset and drowsiness. Talk to your doctor before use if you are pregnant or nursing, have a liver condition or take prescription medication.

Is STOMACH the same as Amend GI™?

STOMACH uses the same four ingredients as Amend GI™. LITMUS is Alexsyn’s new name, and STOMACH is the new name and label.

Is STOMACH vegan?

No. CM chitosan is derived from shellfish, so STOMACH is not suitable for a vegan diet.

How much does STOMACH cost?

A single jar is $39.95. Subscribe and it is $33.96 a jar delivered every 30 days (save 15%), or $95.88 for three jars every 90 days ($31.96 a jar, save 20%). Skip, pause or cancel a subscription anytime.

What are the shipping and return terms?

US orders over $50 ship free. Shipping options and timing appear at checkout. Read the shipping policy and refund policy for the full terms.

View purchase options

Before you start.

STOMACH is a dietary supplement, not a drug. It does not replace medical advice, diagnosis or care. Talk to your doctor before use if you are pregnant, nursing, taking medication or managing a medical condition. Keep out of reach of children.

See a doctor about stomach pain that keeps coming back, trouble swallowing, vomiting, black or bloody stools, or weight loss you cannot explain.

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.

LITMUS STOMACH jar, front label facing forward.

Ready when you are

Put STOMACH to the test.

Every ingredient is named and every term is written down. Try STOMACH for 45 days or get your money back.

From $31.96 per jar with subscription

  • 45-day money-back guarantee
  • Free US shipping over $50
  • Skip or cancel anytime