Know what's in your
iHerb cart — instantly.
iHerb Red Flag scans every product as you shop and tags it Red, Yellow, or Green based on curated ingredient research — with a one-line reason and source for every flag. No subscriptions, no LLM calls, no tracking.
Everything you need to shop smarter
From quick refills to a 40-item cart, iHerb Red Flag does the label-reading for you.
Auto-scan on cart change
No button to press. The overlay appears the moment you add an item, so you can decide before checkout.
Per-product report card
Each row gets a coloured left bar (red / yellow / green) and an expandable list of flagged ingredients.
Source attribution
Every flag links back to the regulatory or scientific source — no opaque scores, no black box.
Privacy first
Only product brand + name leave the page. No cookies, no IDs, no analytics. Run the API on your own VPS if you want.
Curated, evidence-based rules
Every entry in the red / yellow lists has a reason and a citation. Updated as the science evolves.
One-click re-scan
Cleared cache, refreshed rules — re-score your whole cart from the popup in one click.
Right inside your cart.
The report renders in-page, branded as iHerb Red Flag · Ingredient Report, in a Shadow DOM so it never collides with iHerb's styles.
- Titanium dioxide — restricted as a food additive in the EU since 2022.
- Sucralose — recent studies link to gut microbiome changes; limit intake.
- Artificial colour (Red 40) — flagged for hyperactivity in children (UK FSA).
How it works
Three steps from install to a smarter cart.
Install the extension
Add iHerb Red Flag from the Chrome Web Store. No restart, no account.
Open your iHerb cart
Visit iherb.com/mycart. Each row is auto-scanned in seconds.
Decide before checkout
Read the colour-coded verdict, expand the details, swap or remove the items you don't want.
Ready for a smarter iHerb cart?
Free, private, open source. Install once and never forget to read a label again.
Add to Chrome — It's Free