AOR AOR - Mastica Chios 400mg, 120 vcaps
AOR Mastica Chios - Helps relieve heartburn. Chios gum mastic is the resinous extract of the mastic tree. Research supports gum mastic's contribution to gastrointestinal health through its effects on unfriendly bacteria in the stomach. Mastic gum has proven useful for fighting gastritis and heartburn as well as overall gastric and intestinal inflammation. Studies have found that supplementing with mastic gum not only relieves the symptoms of these painful conditions but can actually help heal the stomach, possibly by killing H. pylori bacteria. Mastic gum is an excellent natural alternative for those who have experienced the negative long-term side effects of antacids, proton pump inhibitors, antibiotics and other medications that treat the symptoms of heartburn but not the cause.

Price
Regular Canadian retail price: $65.78 CAD. Price Vault members pay below retail on this product. Member pricing is private and shown after a free opt-in, with no membership fee, no minimum order and no subscription.
In stock. Free shipping across Canada on orders over $89, flat $9.95 under that. 30 days to request a return, with return shipping paid by the customer. Ships from Victoria, BC.
Why people keep reordering it
- Researched strains
- Specific, studied strains at counts high enough to reach your gut.
- Guaranteed live cultures
- Potency held through the end of shelf life, not just at manufacture.
- Digestive balance
- Supports regularity, bloating and a healthy gut barrier.
Best suited to: occasional heartburn after heavy or acidic meals, wants a short-term, non-antacid option for stomach discomfort, comfortable taking capsules on an empty stomach three times a day.
What the research supports
Each capsule is 400 mg of Chios mastic gum, the plain resin with nothing else added. The label's three-a-day dose puts the 120-capsule bottle at 40 days.
Studies use 350 to 1000 mg a day, sometimes up to 2100 mg.
- Heartburn (evidence: moderate, from small human trials, placebo-controlled studies)
- Mastic gum coats and calms the stomach lining, which is why it's taken on an empty stomach. Trials using 350 mg or more a day report less heartburn and gastritis pain.
- H. pylori (evidence: moderate, from small human trials, placebo-controlled studies)
- H. pylori bacteria can inflame the stomach lining and drive persistent discomfort. Lab and small human studies show mastic gum reduces its activity, though results are inconsistent across trials.
- Gut inflammation (evidence: limited, from animal studies, small human studies)
- Mastic gum's compounds appear to calm inflammatory activity in the gut lining. The research is smaller and less consistent than what supports its use for gastric symptoms.
Read the literature: Heartburn on PubMed, H. pylori on PubMed, Gut inflammation on PubMed.
Is it right for you
Worth it if
- Occasional heartburn after heavy or acidic meals
- Mastic gum at this dose has been studied for calming gastric irritation and reducing heartburn symptoms.
- Wants a short-term, non-antacid option for stomach discomfort
- The label is explicitly meant for occasional use rather than daily long-term management.
- Comfortable taking capsules on an empty stomach three times a day
- The dosing schedule requires three separate empty-stomach doses to hit the studied 1200 mg total.
Look elsewhere if
- Someone with symptoms lasting beyond two weeks
- See a health care practitioner rather than continuing self-treatment, since the label itself limits use to occasional, short-term relief.
- Allergic to pistachios or other Anacardiaceae plants
- Look for a different gastric-support approach entirely, such as deglycyrrhizinated licorice or zinc carnosine, since mastic gum comes from the same plant family.
- Living with diabetes, Crohn's disease, or on blood sugar or lipid medication
- Talk to a practitioner before starting, since the label flags these as conditions needing supervision.
What to expect
Some people notice less burning or discomfort within days of consistent use, though mastic gum is generally used over one to two weeks rather than as a single-dose fix. It is meant for short courses, not ongoing daily use.
How it compares
- Compared with over-the-counter antacids or acid reducers
- Mastic gum is positioned as addressing gut bacteria and inflammation rather than just neutralizing or blocking acid production. The tradeoff: It works more slowly and is meant for occasional short-term use, not the fast symptom relief antacids give within minutes.
Product details
- Active ingredient
- Chios mastic gum
- Ingredient form
- vcaps
- Strength
- 400mg
- Servings per container
- 120
- Suggested use
- Adults: Take one capsule three times daily on an empty stomach, or as directed by a qualified health care practitioner.
- Country of manufacture
- Canada
- Independent testing
- ISO-certified third-party labs
- Certifications
- Non-GMO, Made in Canada
- Storage
- Store in a cool, dry place
- Brand
- AOR
How to take it
Adults: Take one capsule three times daily on an empty stomach, or as directed by a qualified health care practitioner.
- Store in a cool, dry place away from direct light.
- Keep out of reach of children.
- Consult a practitioner if you are pregnant, nursing or on medication.
Ingredients
Each capsule contains
- Chios mastic gum
- 400mg
Non-medicinal ingredients
Microcrystalline cellulose, sodium stearyl fumarate. Capsule: hypromellose.
Interactions and cautions
- Medications
- May interact with certain prescription medications. Review with your pharmacist if you take daily medication.
- Timing
- If taking antibiotics, separate doses by 2 to 3 hours.
- Pregnancy and breastfeeding
- Consult a healthcare practitioner before use if pregnant or breastfeeding.
- General
- Use only as directed. Discontinue and consult a practitioner if you experience an adverse reaction.
This product is not intended to diagnose, treat, cure or prevent disease. Consult a healthcare practitioner before use. Free certified advisors are available at 1-888-386-1211, Mon to Fri, 9am to 5pm PT.
Questions about AOR - Mastica Chios
- Is this the genuine, authentic product?
- Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.
- How is the price below retail?
- We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.
- How fast does it ship?
- Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.
- Can I return it?
- You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.