Personal supplement safety · Invite-only beta

Know what your supplements do together.

Intaq checks every supplement you take against your medicines, your conditions and each other, then tells you plainly what to change, in words a person can act on.

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On the label St John's wort 900 mg

Your medicine Birth control pill

Checked against the medicine you take

Do not take — it conflicts with your profile

Not advised if you use hormonal birth control. St John's wort speeds up the breakdown of birth control hormones, which can cause breakthrough bleeding, and unintended pregnancies have been reported.

A real check from the Intaq app, run on 16 October 2026.

Three more real checks

Betaine HCl 650 mg with Maalox

Take with caution — see the note below

Use with care if you take an antacid such as Maalox, Mylanta, Rolaids or Tums and your betaine is the hydrochloride (HCl) form. Betaine HCl adds stomach acid and an antacid neutralises it, so each can weaken the other. Take them at least 2 hours apart.

Phenylethylamine HCl 500 mg, no medicines

Avoid — not safe for you as dosed

Phenylethylamine HCl: 500 mg is above the evidence-based ceiling of 250 mg.

Vitamin D3 25 mcg with Lisinopril 10 mg

No profile conflict found — but this is a partial check, not a clearance

Nothing found against you. Some checks have no data for this product yet.

Checked on 16 October 2026. Each check uses the age, sex and medicines of a sample person; yours will use your own.

How a check works, in 30 seconds

  1. Take a photo of the label

    Reading the label…

    On the label St John's wort 900 mg

    1 Take a photo of the label. Intaq reads the ingredients for you.

  2. On the label St John's wort 900 mg

    Your medicine Birth control pill

    2 Add the medicines you take, the way they are written on the box.

  3. Do not take — it conflicts with your profile

    Not advised if you use hormonal birth control. St John's wort speeds up the breakdown of birth control hormones, which can cause breakthrough bleeding, and unintended pregnancies have been reported.

    3 Get a verdict for that one product, with the reason in plain words.

  4. Take Vitamin C (Ascorbic Acid) and Zinc today — your food covers Copper, Omega-3 Fatty Acids and 2 more.

    Dinner

    • Farmed Rainbow Trout 115 g for Vitamin D3
    • Braised Beef Liver 130 g for Copper
    • Cooked Spinach 135 g for Magnesium

    4 Food counts too. Each day, Intaq plates real food for your plan and checks it against your medicines.

  5. How did you sleep?

    PoorlyOKWell

    How do you feel today, compared with yesterday?

    WorseSameBetter

    5 A ten-second check-in each day, so Intaq can see what is working.

Every line inside these screens is the app's own: the check ran on 16 October 2026; the plate and the check-in come from a sample person's Today on 17 October 2026.

What Intaq checks

Your medicines

Over 20,000

medicines known by name

Known under over 43,000 names. When Intaq cannot match a medicine, it says so plainly.

Your supplements

259

supplements and nutrients

Each one checked against your medicines, with over 2,800 known medicine and nutrient interactions, and against the others you take.

About you

Over 1,200

safety rules

Matched to your conditions, medicines, allergies, pregnancy, breastfeeding, age, smoking and an upcoming operation.

Counted on 20 October 2026 from the data the app checks with. Read the full walk-through, from sign-in to your first plan.

Why we built Intaq

I have designed supplement formulas for more than ten years. In that time I have watched too many people choose a supplement because of what its label promises, without anyone asking about the rest of their life: the medicines they take, the conditions they live with, what they eat and how they live.

Those things can change what a supplement does to you.

Some of the clashes are common

Others are rare, and easy to miss

Intaq is the check I wish each of them had had: one that looks at the whole person before the supplement. It never diagnoses or prescribes. It gives you, and the people who care for you, a clear picture to decide from.

— Intaq's founder

Built to be careful

Intaq never diagnoses, treats or prescribes. Every caution it gives you traces back to published evidence, and when the evidence does not cover a combination the app says it does not know rather than guessing. Pregnancy, breastfeeding, age, allergies and an upcoming operation are all taken into account. Read how Intaq stays careful.

Who it is for

People on medicines

If you take even one prescription and any supplement, the check is the point. Type the name on the box and Intaq takes it from there.

Families

One organizer, up to three adults and the children's profiles, each person choosing what is shared. Meals and the shopping basket are scored for everyone. For families.

Clinics and brands

Screen a patient's list without storing anything that identifies them, or check a formulation against the same standard a consumer sees. For practitioners, for brands.

Join the beta

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