Evi / FAQ

Questions, answered plainly.

How we review evidence, what the labels mean, and how accounts, price alerts and store links work. If your question isn't here, write to us — a real person reads every message.

01 / What Evi is

What is Evi?

Evi is an evidence-first beauty and wellness publication. We look at the products people are actually talking about, review the studies behind their claims, and explain what the science does and doesn't support — in plain language.

Alongside the evidence, we show where to buy products, help you save and organise what you're interested in, and flag price drops on things you've saved.

What do the confidence labels mean?

Every claim we review carries a confidence label — strong, mixed, limited or mostly hype — based on the type and quality of the studies behind it. A meta-analysis of clinical trials earns more confidence than a single lab study, and a claim resting on marketing alone earns none.

We show our sources beside every claim, and every study we link is free to read.

Is anything on Evi medical advice?

No. Evi is editorial and educational. Nothing on this site is a diagnosis, treatment plan, or substitute for advice from a doctor or dermatologist. If a product or ingredient relates to a skin or health condition you have, speak to a professional first.

Where does your information come from?

Product details, prices and study links come from the retailers and publishers we link to, and from peer-reviewed research in public databases such as the US National Library of Medicine. If we can't verify something, we say so instead of guessing — you'll see “not verified” rather than a made-up number.

02 / Evidence and sources

How do you choose which studies to cite?

We look for peer-reviewed research — meta-analyses, systematic reviews and clinical trials first — that is free for anyone to read. When the strongest available evidence is a smaller or earlier-stage study, we lower the confidence label accordingly and say what the study actually measured.

Where a paper studied something related rather than the ingredient itself, the summary tells you that too.

A study link didn't work or looked wrong. What should I do?

Tell us. Every citation is checked against the paper it names, and the check runs regularly — but we'd rather hear it from you than miss it. Send the page and the study in question to the support address below and we'll review it.

Why can't I find a study for some ingredients?

Some ingredients genuinely haven't been studied well in humans, or the only papers sit behind paywalls we won't link. When that happens we'd rather show “limited” or nothing at all than imply evidence exists where it doesn't.

03 / Accounts and My Evi

Do I need an account to use Evi?

No. You can read everything, compare retailers and follow study links without signing in. An account adds saved products, lists, price alerts and email preferences.

What is My Evi?

My Evi is your personal shelf — the back pages of your beauty journal. It holds the products you've saved, the lists you've organised them into (Want, Already Own, Repurchase, or any list you invent), your price alerts, your optional Evi Match preferences and your email choices.

Can I share a list with someone?

Yes. Any list can get a shareable link with a clean editorial page — the products and your title, nothing else. There are no follower counts, likes or public profiles.

How do I delete my account or my data?

Email the support address below and we'll delete your account, saved products, lists, alerts and email preferences. See the Privacy Policy for the full detail on what we store and for how long.

04 / Price alerts

How do price alerts work?

From any product page, your saved products or a list, you can ask Evi to watch a price — any drop, or a specific amount you set. When a verified retailer price meets your threshold, you'll see an alert in My Evi.

Why does an alert say it's “awaiting a verified price”?

Evi never guesses prices. Alerts only trigger on retailer prices we've verified, so an alert waits until a verified price exists for that product.

05 / Buying through Evi

Do you sell products?

No. Evi is a publication, not a shop. When you choose a Shop link, you buy directly from the retailer on their own site, under their own prices, returns and privacy policies.

Do you earn money from the links?

Sometimes, yes. Some retailer links are affiliate links, which can earn Evi a commission on a purchase — never at any cost to you, and never in a way that changes what we write. Every such page carries the disclosure.

A price on Evi looks wrong.

Prices change constantly and we only show prices we've verified from a retailer, marked with when we checked. If something looks stale or wrong, tell us at the support address below and we'll re-verify it.

06 / Independence and sponsored content

Can brands pay to appear on Evi?

Brands can sponsor clearly labelled collections and features. They cannot buy evidence reviews, confidence labels, rankings, Trending on Evi, Similar to This or Evi Match recommendations — those stay independent, and sponsorship is applied through a separate system that our organic rankings never read.

How do I know content is sponsored?

Sponsored content is labelled “Sponsored” or “Paid partnership with [brand]” at the top and beside the products involved, with disclosure text on the page. When a campaign ends, the label and placement go with it.

07 / Still stuck?

Something else?

Write to us — a real person reads every message.

Still stuck?

Write to us.