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How Does the FDA Regulate Supplements, and What Does It Leave to the Maker?
The FDA does not approve dietary supplements before they are sold. The maker is responsible for a safe product and a truthful label, and the agency acts afterward if a product is unsafe or its claims go too far. A bottle of Reviralis capsules on a shelf has not been reviewed by the FDA for safety or effect.
Written by the Reviralis label deskUpdated · 5 min read

The basic rule01
Does the FDA approve supplements before they are sold?
No. The FDA does not approve a dietary supplement before it goes on sale, and it does not test each bottle first (FDA, Questions and Answers on Dietary Supplements).
That is the main difference from a prescription medicine. A drug must be shown to work and to be safe before anyone can sell it. A supplement is treated as a kind of food, so the maker decides that the product is safe and that the label is truthful, and then sells it.
Q: So does a supplement on a shelf have a stamp of approval? A: No. A supplement label carries no FDA approval, and any sentence that suggests one should be read with care. The Reviralis Complete label prints the standard line that its claims have not been evaluated by the FDA, which fits this rule (FDA, Structure/Function Claim Notification).
Who carries the duty02
What must the maker of a supplement do?
The maker or distributor must sell a product that is safe and a label that is not false or misleading, and it must follow the FDA's manufacturing rules.
For a blend, the label prints the total weight and lists the names from largest to smallest (21 CFR 101.36, Supplement Facts Panel). That is why a Reviralis buyer sees one 661 mg figure for 18 names and no single amount.
The maker may add a claim about how a nutrient affects the structure or function of the body, such as "supports" wording. That claim must come with the disclaimer, and it cannot name or imply a disease (FDA, Structure/Function Claim Notification).
| Stage | Maker or seller | FDA |
|---|---|---|
| Before sale | Decides the product is safe; writes the label; follows manufacturing rules | Does not approve the product or the label |
| At sale | Prints facts, ingredients and the disclaimer; avoids disease claims | Sets the rules those labels must meet |
| After sale | Handles complaints and reports serious reactions | Can review reports, warn the public, and act against unsafe or misbranded products |
After the sale03
What can the FDA do once a supplement is on sale?
The agency can step in when a product is unsafe, is mislabeled, or is sold with claims that make it an unapproved drug.
Its tools include warning letters, public warnings, requests for a recall and court action. It usually learns of a problem from reports and inspections, not from testing every lot.
A supplement represented for the treatment or prevention of a specific disease is treated as a drug, whether the claim is spoken outright or only implied (FDA, Questions and Answers on Dietary Supplements). In 2011 the FDA and the Federal Trade Commission acted against products sold online as treatments for sexually transmitted infections, and said no over-the-counter or online supplement can treat or prevent them (HIV.gov, FDA and FTC Act on Fraudulent HIV and STD Products).
Q: Does that mean the FDA has acted against Reviralis? A: We found no action naming Reviralis. We also found no agency review of it. Neither is a seal of safety.

Reviralis: from $49 a bottle60 capsules a bottle · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsWhat it means for you04
How should a buyer read a label if the FDA does not pre-approve it?
Read it as the maker's own statement. Check the amounts, the warnings and the claims, and ask the seller for anything the label leaves out.
- Read the Supplement Facts and the other ingredients, then note what is not printed. On Reviralis, no amount is given for any single blend name.
- Treat a claim about a disease with doubt. The Reviralis label makes none, and the sales page speaks of outbreaks and flare-ups in quotes we check on the is it legit page.
- Show the label to a pharmacist if you take a prescription. The label itself says to ask a provider first.
- Keep the lot number from the bottle. See how to report a supplement reaction.
Herpes has no cure. Prescription antivirals, taken as a clinician directs, are the proven care, and a prescribed antiviral should be kept going. Reviralis is not an antiviral, and no source we found shows that it prevents or reduces outbreaks.
Related reading05
Where can you read more about supplement labels?
Start with the label itself, then with the pages that count its names and read its numbers.
The Supplement Facts page types out all 22 printed amounts. The 661 mg blend page shows the arithmetic behind the ceilings. For the plain-language meaning of the "not evaluated" line, read what the not-evaluated line means.
FAQ06
Reviralis questions people ask
Is a dietary supplement approved by the FDA?
No. The FDA does not approve supplements before they are sold, so the label will not carry an approval. The maker must make a safe product with a truthful label, and the agency can act afterward if it does not.
Does the FDA test every bottle of a supplement?
No. The FDA does not test every bottle or every lot before sale. It may inspect facilities, review reports from consumers and clinicians, and run its own tests when it has a concern about a product.
What does the not-evaluated disclaimer mean?
It means the FDA has not reviewed the structure or function claim on the label. The disclaimer is required with such a claim, and it does not say the product is safe, tested or proven to work.
Who is responsible if a supplement causes harm?
The maker or distributor is responsible for selling a safe product. If you have a reaction, call a clinician first, then report it to the FDA and to the seller so the problem is on record.
Who wrote this07
Written and reviewed by
Pages built from the label, the order page and linked NIH, FDA, FTC, Mayo Clinic and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a USA Authorized Reviralis Retailer. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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