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Skincare graded by science, not marketing

A free Chrome extension that grades every ingredient on Sephora, Ulta, Cult Beauty, iHerb and six other stores. Green, yellow, red – based on clinical trials, not brand copy. No signup, no tracking

Add to ChromeFree · no signup

Why a traffic light?

Letter grades (A–F) borrow from pharmacology, where multiple RCTs are required to earn a top mark. Almost no cosmetic ingredient meets that bar, so the grade becomes meaningless. Three colors honestly reflect how much real evidence each ingredient has

Works

Multiple RCTs, evidence-based dermatologists recommend. Retinol, niacinamide, glycolic acid

Uncertain

Limited studies or weak effect. Bakuchiol, most peptides, plant extracts

Doesn't work

Molecule can't penetrate skin, or inefficacy is proven. Topical collagen, PDRN in creams

How it works

1

Open a product

On Sephora, Ulta, Cult Beauty, Boots, iHerb and six other supported retailers.

2

Check the ingredients

The extension finds the ingredient list automatically and colors each component.

3

Make a decision

The summary panel shows how many ingredients have real evidence behind them and how many are filler.

What Evigrade does

Position-based analysis

INCI lists run in descending order of concentration. If alcohol or fragrance lands in the top five, the extension flags it.

Irritation potential

Every component carries an irritation score with a note for sensitive or rosacea-prone skin.

Pregnancy safety

Flags ingredients to avoid during pregnancy: retinoids, salicylic acid above 2%, hydroquinone.

Manual input

Paste an ingredient list from packaging, a Reddit thread or anywhere else and get the same grading.

Supported stores

More stores coming based on user requests.

International

Sephora·Ulta·Cult Beauty·Boots·Lookfantastic·Beauty Bay·iHerb

Europe

Douglas·Notino·Druni·Primor

Where the data comes from

Evigrade is built on peer-reviewed clinical trials, Cochrane systematic reviews and dermatology guidelines. AI agents build the ingredient cards to Evigrade's editorial standard, and batch audits check them. Full citations live on each ingredient page – no hand-waving, no proprietary scores.

Browse the ingredient database

FAQ

Is it free?
Yes, fully. A paid tier with skin-type personalization and goal-based routines is planned later this year. The core ingredient grading stays free forever.
Why doesn't it work on my site?
We currently support Sephora, Ulta, Cult Beauty, Boots, Lookfantastic, Beauty Bay and iHerb, plus European chains like Douglas, Notino and Druni. Want your store added? Drop us a line.
Do you collect user data?
No. The extension sends only the ingredient list from the current product page to our server for matching. No browsing history, no email, no account, no analytics SDK.
Why a traffic light instead of A–F?
Letter grades borrow from pharmacology. Cosmetic research rarely hits that bar, so almost nothing would earn an A and the scale becomes meaningless. A traffic light is honest about how much real evidence each ingredient actually has.

Try it on your current routine

Open any product page on Sephora, Ulta or Cult Beauty. Every ingredient graded in seconds, free forever

Add to Chrome

Free · no signup · no tracking