How we verify every price

A price appears on GLP Observer only if we loaded the page that publishes it, saved a copy, and can link you to it. Last full check: October 19, 2026. This page explains which sources qualify, how we capture and date each price, how the Self-Pay Index is built, and who reviews the work.

1. Primary sources only

We use manufacturer pages (LillyDirect, Lilly pricing disclosures, NovoCare, Wegovy and Ozempic savings pages), government sites (FDA, TrumpRx.gov), independent research (KFF) and each telehealth program’s own pricing page. We do not use coupon aggregators, forums, or third-party price claims.

2. Rendered, saved, quoted

Many price pages load prices with JavaScript. We render each page in a real browser and save its text and a screenshot. Prices are quoted from that copy, using the program’s own wording where it matters (“as low as”, “starting at”, intro terms). If a price sits behind a quiz, a login or a blocked page, we leave it out.

3. Verified-on dates

Each page shows the date its prices were last checked against the source. Each source in a page’s list shows when we checked it and, for announcements, when it was published.

4. History without guessing

Price charts plot only dated manufacturer announcements plus our own observations. Between points, the line steps (the earlier price is carried forward). We never interpolate. If we notice a change but can’t date it, we log it as “observed” on the day we saw it.

5. The Self-Pay Index

The index is the simple average of the Zepbound 10 mg on-time-refill price and the Wegovy 2.4 mg standard price at each month-end, from March 2025. Months before our first observation are labeled as reconstructed.

6. No ratings, rankings or winners

We don’t score, star, rank or “pick” programs, and comparisons don’t declare winners. Where a table is sorted by price, it says so; lowest is arithmetic, not an endorsement. Program pages are called reviews only in the sense of a price-and-terms review.

7. Head-to-heads need data on both sides

We publish a program-versus-program page only when both programs publish prices we could verify. We don’t publish state or insurer pages unless we have real, state-specific data, which is why Medicaid coverage is covered as one sourced guide.

8. Calculators are arithmetic

The comparison builder multiplies published prices by the number of fills and adds membership fees. It leaves out intro prices that end after a set number of fills. It doesn’t estimate doses, outcomes or eligibility.

9. Who reviews it

Every page is written and reviewed by the GLP Observer Editorial Team. The review is a source review: each number is checked against the saved copy of its source before publishing and at every re-check. It is not a clinical review, and no individual medical credentials are claimed. The full process is in our editorial policy.

10. Not medical advice

We report prices. We don’t give dosing or treatment advice, and nothing here replaces a licensed prescriber. Compounded drugs are labeled as not FDA-approved wherever they appear.

11. Corrections

Found a price that changed? See corrections. We re-check sources on a regular schedule and log changes on the price-change page.