Week 1
Set the routine
One capsule with breakfast, one with your evening snack. Put the jar where you will see it.

Real life
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.

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

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

One jar, 30 days
Sixty capsules in one jar. Keep it where your day starts so you never miss the morning dose.

Twice a day
One in the morning, one at night, every day. Consistency is the plan.
How STOMACH works
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.
Vitamin A, as beta-carotene, supports the maintenance of normal mucous membranes, including the lining of your stomach.
Your body needs vitamin C to form collagen. Researchers have studied Centella asiatica (gotu kola) for its role in collagen and fibronectin production.
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
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.





Read the label
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.
| 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.
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
No promises about how you will feel or when. Here is what the routine looks like, and where the guarantee comes in.
Week 1
One capsule with breakfast, one with your evening snack. Put the jar where you will see it.
Weeks 2–4
One jar lasts 30 days. Your stomach lining renews every few days, so take STOMACH every day before you judge it.
Day 45
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
60 capsules per jar. That is 30 days of the routine.
Two capsules in total each day.
One in the morning and one in the evening.
Take each capsule with a light snack.
STOMACH VS OTHER BRANDS
A side-by-side look at ingredients, directions and buying terms.
| 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. |
Reviews
4.4 / 5
These were effective for me.
These seem to be working. Going to order again
Works well.
Seems to helping my stomach.
A CLOSER LOOK
See the jar and capsules where they sit during a normal day.
The Litmus guarantee
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
Ingredients, daily use, buying options and safety in one place.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
STOMACH uses the same four ingredients as Amend GI™. LITMUS is Alexsyn’s new name, and STOMACH is the new name and label.
No. CM chitosan is derived from shellfish, so STOMACH is not suitable for a vegan diet.
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.
US orders over $50 ship free. Shipping options and timing appear at checkout. Read the shipping policy and refund policy for the full terms.
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.