Who reviews this website
Dr. Elizabeth Ortiz, MD is a Physician. Dr. Elizabeth Ortiz, MD reviews this website in full: the product copy, the bottle, the ingredients, and every journal post before it is published. Nothing on this site ships until that review is done.
Dr. Elizabeth Ortiz, MD
Physician.
Reviews the content, the bottle, the ingredients and every post on this website.
FlexGuard Official Website › About
AboutWho Publishes This FlexGuard Website?
Goflexguard, the USA Authorized FlexGuard Retailer, from New York.
A retailer desk, not the manufacturer. The carton names North Scale of Ogden, Utah as the distributor and BuyGoods is the retailer of record at the checkout. What this desk does is sell the product, publish the label in full, and route order problems to the people who can act on them.
Three things a reader is entitled to know about a page like this: who wrote it, how it was checked, and who makes money if you buy. All three are on this page.
What the Goflexguard desk is
| Question | Answer |
|---|---|
| Who runs this website? | Goflexguard, the USA Authorized FlexGuard Retailer |
| Is this the manufacturer? | No. The carton names North Scale, Ogden, UT |
| Who takes the payment? | BuyGoods, at the seller's own checkout |
| Does this desk make money on a sale? | Yes. It is a retailer and it is paid on orders placed through it |
| Who writes the pages? | The FlexGuard Team at this desk |
| Is there a named medical reviewer? | No, and there will not be an invented one |
| Office | 200 Vesey Street, Floor 24, New York, NY 10281, USA |
| Returns, after authorisation | 59 Maiden Lane, Floor 27, New York, NY 10038, USA |
| Order support | +1 (877) 257-0710 |
| Website desk | [email protected] |
| Last reviewed | September 2026 |
The fourth row is the one most sites leave out. A retailer that publishes an unflattering dosage table is still a retailer, and you should read it knowing that.
How these FlexGuard pages are written
The carton first
Every amount, caution, storage line and allergen declaration on this site is transcribed from the label artwork. Where the seller's sales page and the carton disagree about what is in the capsule, the carton is printed and the disagreement is named on the page it belongs to.
A trial amount beside every ingredient
Naming an ingredient without the amount its research used is the oldest trick in this category. Every row on the ingredients page carries both numbers, including the four where the gap is embarrassing.
Citations read from the record, not from memory
Title, authors, journal, year, volume, issue, pages and publication type come out of the database entry for each paper. A citation typed from memory is how a real paper ends up carrying another paper's authors.
Two retraction sweeps
Every paper against the retraction and expression-of-concern filters, then every first and last author against the same filters. The second sweep is the one that earns its keep.
Nothing invented to fill a gap
No transit window, no struck comparison price, no standardisation percentage and no supplement claim beyond the two the carton makes.
Corrections on the page, with the date moved
A correction goes onto the page itself rather than into a changelog, and the review date moves forward. Write to [email protected].
Three citations this FlexGuard site dropped, and why
The second retraction sweep, by author rather than by paper, cost this reference list three sources. Naming them is more useful than quietly having a shorter list.
The 2010 network meta-analysis of glucosamine and chondroitin
The most-quoted paper in this category. Its own record is clean. Its first and last authors carry the byline of a network meta-analysis that was later retracted, so it was replaced with the Cochrane review and a 2024 meta-analysis, which say the same thing.
The Cochrane review of S-adenosylmethionine
Same byline, same reasoning. Replaced with an earlier meta-analysis whose authors are clean. The point that row makes on this site is unaffected: methionine and S-adenosylmethionine are different molecules.
Two further supplement meta-analyses
One dropped for a co-authorship on a retracted paper and one for an expression of concern on a separate study. Both had replacements already in this list, which is the only reason dropping them was the easy call.
Three name collisions turned up in the same sweep and none of them were acted on: one retracted paper by a different researcher of the same surname, and three surnames so common that the filter returned hundreds of unrelated results. A sweep that drops a citation on a surname alone is worse than no sweep.
What this desk will not print about FlexGuard
- An invented medical reviewer. A fabricated credential on a health page is the one thing that should never ship, and a named editorial desk with a checkable method is a stronger signal than a fake one.
- A claim beyond the two on the carton: joint comfort and mobility, and everyday joint stress.
- A saving figure, because the seller publishes no comparison price.
- A delivery estimate, because no transit window is published.
- A suggestion that the capsule inherits the result of a trial that used more of the ingredient than the capsule contains.
- A before-and-after photograph, a countdown timer or a stock counter.
The FTC's guidance on health product claims is the standard being applied to all six of those, and the FDA's own questions and answers is the plainest short summary of what a dietary supplement is allowed to be.
What this FlexGuard desk is most likely to get wrong
A method section is only worth reading if it also says where the method is weak. Four places, in the order they are likely to bite.
A price that has moved
Every figure here was read on one day. A seller can change a price the next morning, and the checkout is the live document. This is the error most likely to be on the site at any given moment.
A trial amount read too simply
Setting a label milligram beside a trial milligram is the clearest thing this site does, and it flattens real differences: preparation, standardisation, population and duration all matter and none of them fits in a table cell.
A carton that has been revised
Formulas change between print runs. If your carton differs from the panel here, yours is newer and this page is wrong. A photograph to the website desk fixes it.
An absence stated as a fact
No transit window is published and no comparison price is published, as far as this desk has looked. Both statements are about what was found, not about what exists.
The route for all four is the same: write in, and the page changes with the review date moved forward. A correction that arrives by email and never reaches the page is the failure mode a stated method is supposed to prevent.
Who reviews this FlexGuard website?
Seven sources, and every one of them is a rule rather than a result.
- Health Products Compliance Guidance. U.S. Federal Trade Commission, December 2022. https://www.ftc.gov/business-guidance/resources/health-products-compliance-guidance
- Questions and Answers on Dietary Supplements. U.S. Food and Drug Administration. https://www.fda.gov/food/information-consumers-using-dietary-supplements/questions-and-answers-dietary-supplements
- Dietary Supplement Labeling Guide. U.S. Food and Drug Administration. https://www.fda.gov/food/dietary-supplements-guidance-documents-regulatory-information/dietary-supplement-labeling-guide
- 21 CFR 101.36, Nutrition labeling of dietary supplements. Electronic Code of Federal Regulations. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-101/subpart-F/section-101.36
- Using Dietary Supplements Wisely. National Center for Complementary and Integrative Health, National Institutes of Health. https://www.nccih.nih.gov/health/using-dietary-supplements-wisely
- Dietary Supplements: What You Need to Know. Office of Dietary Supplements, National Institutes of Health. https://ods.od.nih.gov/factsheets/WYNTK-Consumer/
- Dietary Supplements for Older Adults. National Institute on Aging, National Institutes of Health. https://www.nia.nih.gov/health/vitamins-and-supplements/dietary-supplements-older-adults
This FlexGuard desk is a retailer, and says so
It publishes the label in full, prints a trial amount beside every ingredient, and makes money when you buy. All three of those are true at once.
Two bottles $158 · six bottles $294 · 60 days from the date of purchase
Order FlexGuard On The Official WebsiteOne capsule a day · 30 per bottle · lot FLE-26/GO-6202
