Every ingredient, checked against the one thing that matters — you.
TrustTag sets up your allergen and dietary profile once, then quietly checks every product for you as you shop the UK's biggest supermarkets online. Green means go. No more turning packets over three times.
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Allergens & intolerances covered
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Per-product check, live as you browse
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Retailers today — more on the way
Three steps between you and a worry-free basket.
Build your profile
Tell TrustTag what you're avoiding — allergens, intolerances, or a lifestyle like halal, vegan or low-FODMAP. Takes about ninety seconds.
Add the companion
A small, free browser extension reads your saved profile so it can check products as you browse — nothing is ever typed twice.
Shop as normal
Continue to Tesco, Sainsbury's or Waitrose from TrustTag. Every product gets a clear safe, caution or conflict marker before it reaches your basket.
Every card, coloured before you click.
Real results from a live Sainsbury's search, with gluten flagged as a restriction. No screenshots were staged for this — that's the companion running as you'd actually see it.
Safe
Nothing in your profile was found — shop normally.
Caution
A “may contain” trace warning matches something you flagged.
Conflict
A real ingredient matches a restriction in your profile.
From a wall of small print to a single, clear answer.
“Milk powder, soy lecithin, wheat starch, natural flavouring. May contain traces of peanuts, sesame, mustard.” No summary. No flag for your profile. You read it again, just to be sure.
Safe for your profile. Checked against your saved allergens and traces in under a second, with the exact ingredient flagged the moment it isn't.
“I'm coeliac, and I built the tool I wished existed — one that reads the label before I have to, every single time.”
TrustTag exists because dietary restrictions shouldn't mean a slower, more anxious version of grocery shopping. Whether you're managing a diagnosed allergy, a lifelong intolerance, or a diet rooted in faith or health, you deserve a clear answer before something reaches your basket — not after you've unpacked the bag. We built TrustTag to be that second pair of eyes: careful, consistent, and always on.
Shop the stores you already use.
More UK supermarkets are being added — starting with the three below.
Tesco
tesco.com
Full grocery range, nationwide delivery.
Sainsbury's
sainsburys.co.uk
Groceries, Nectar prices, same-day slots.
Waitrose
waitrose.com
Premium groceries and own-brand ranges.
Set up your profile once. Shop safely everywhere.
Free to create, takes under two minutes, and you're always in control of what's saved.
Get started free