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WellnessChecked · July 2026
Are Supplement Money-Back Guarantees Real? Complete Guide
Supplement money-back guarantees range from useful to nearly meaningless. What to look for, the conditions that trip people up and what to check before you buy.
Affiliate disclosure: We earn commissions from the brands we review, at no extra cost to you. We only cover products from brands we have affiliate relationships with, so our top picks are the best of the products we cover, not of every product on the market.
⚡ Quick AnswerLast Reviewed: October 2026
Many supplement money-back guarantees are real, but the conditions matter as much as the headline length. Before you buy, read the written terms on the official website: how long you have, whether the window starts at delivery and when the return has to arrive, whether opened bottles count, whether shipping is refunded, and whether orders from Amazon or other sellers are covered. Lengths and conditions vary from product to product, including among the products we review.
What Makes a Guarantee Legitimate
Long enough to try it: Many supplements are taken for 8 weeks or more in studies, so a 14- to 30-day window may not give you time to judge. Check whether the window runs from the order date or from delivery, and whether your return has to arrive at the warehouse by the deadline
Clear terms on official website: Terms, conditions and refund process clearly stated — not buried in fine print
A company you can identify: Look for a named company with a physical address. Leading Edge Health, the company behind Testosil, VigRX Plus and GenF20 Plus, says it has operated since 2001 and lists offices in Canada and Cyprus
Where you buy matters: Many guarantees only clearly apply to orders placed directly with the company. An Amazon or marketplace order may not be covered, so check before buying elsewhere
Return conditions you can meet: Some guarantees refund only unopened bottles, some cover a set number of opened ones, and most don't refund shipping. Being asked to send back the containers is normal; a guarantee with no written terms is not
Guarantee Terms We Checked (October 2026)
Testosil — advertised as a lifetime guarantee: The guarantee page says you can return all bottles, opened and unopened, at any time; the refund covers unopened bottles plus one opened bottle; shipping isn't refunded; one order per customer. Some wording on the page is inconsistent, so confirm with customer service before returning
VigRX Plus — 67 days: Try two containers over 60 days; the empty containers (plus any unopened ones) must be received at the warehouse within 67 days of delivery, with no exceptions. Shipping isn't refunded; one order per customer
GenF20 Plus — 67 days: Try for 60 days, then return the two opened boxes plus any unopened ones so they arrive within 67 days of delivery. Shipping isn't refunded, duties and taxes must be paid, and it's one refund per customer
HerSolution — 67 days: Try for 60 days; returned containers (the empties, or unopened ones sent back with the first two opened) must reach the warehouse within 67 days of delivery. Shipping isn't refunded and you pay return postage; one refund per customer
Other products: Terms differ. GenuinePurity products, for example, have a 97-day window from delivery, and for some products we could only confirm the terms from third-party listings. Check each product's own page before you order
Many are, as long as you meet the conditions. Read the written terms on the official site before you buy. Common reasons a refund can be refused include a return that arrives after the deadline, missing containers or an order placed with another seller. A guarantee with no written terms, or from a company you can't identify, is worth much less.
Long enough to try the product for about as long as it was taken in studies, often 8 weeks or more. Some windows start at delivery and require the return to arrive by the deadline, so the real time to decide is shorter than the headline. Testosil is advertised with a lifetime guarantee, but its terms refund unopened bottles plus only one opened bottle.
Usually, if you bought from the company directly and follow its conditions. Contact customer service before the deadline, keep your order number and the containers, and leave time for the return to arrive.
It depends on the product. Most Leading Edge Health products we checked, such as VigRX Plus and HerSolution, refund the first two opened containers plus any unopened ones returned within 67 days of delivery. Testosil's terms refund unopened bottles plus one opened bottle. Some brands accept only unopened products.
Many manufacturer guarantees only clearly apply to orders placed directly with the company, so an Amazon purchase may not be covered, and a marketplace listing may not come from the brand at all. Check with the manufacturer before buying elsewhere.
Disclaimer: For informational purposes only. Dietary supplements. Not evaluated by FDA. Not intended to diagnose, treat, cure or prevent disease. Individual results vary. Full disclaimer →
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