Know what’s on you.

Two big ways. First, we publish our methodology and the source papers behind every flag — most apps don’t. Second, Glo gives you two scores: an objective health score for the formula and a personal match score for your skin type, concerns, and sensitivities. Most apps only do the first.

We aggregate from PubMed, EU Scientific Committee on Consumer Safety reports, peer-reviewed dermatology journals, and concentration data from cosmetic regulators. Eleven independent dermatologists review our scoring rubric quarterly. Brands have no input.

No, and no. 100% of our revenue is from your subscription. We don’t have advertising partnerships, sponsored placements, or “affiliate” relationships with the brands we score. We can’t be bought.

It tracks four things from a daily photo: hydration cues, redness, evenness, and texture. None of it is a medical diagnosis — it’s a trendline. The point isn’t “your skin is 7/10 today,” it’s “your hydration has dropped two weeks in a row, look at what you changed.”

Snap the ingredient list and we’ll score it on the fly. If we can’t read the label clearly, you can submit it manually — we usually get it in within 48 hours and notify you when it’s ready.

The annual plan comes with a 7-day free trial. Monthly is $10/mo with no trial. After the trial it’s $30/year. We don’t run a freemium tier because it inevitably means pushing users to upgrade — and we’d rather just charge a fair price.

From your iPhone Settings → Subscriptions → Glo. One tap. We don’t have a retention team or a “wait, before you go” flow. You can resubscribe whenever.