Editorial Standards: How This Site Checks Its Facts

We trust the bottle label, then government and university health sources, then peer-reviewed reviews. We treat the seller's info page as a claim to test, not as proof.

The label is the legal document. The info page is marketing, though we use it for prices and the guarantee (ZenCortex info page). When they differ, we say so and follow the label.

When we could not find an authoritative page for an ingredient, we write that. We never fill the gap with a guess (NCCIH, Using Dietary Supplements Wisely).

We check every number against the label or the seller's page and show the arithmetic. Prices are only those the seller prints.

The label does not print an amount for any of the 22 blend lines. By the labeling rule, blend ingredients are listed in descending order by weight (eCFR, 21 CFR 101.36 Supplement Facts). So line k of 22 can weigh at most 200 divided by k milligrams. We call these ceilings, not amounts.

Prices were read from the seller's page on October 19, 2026. No price is printed for one bottle, so we do not show one. Shipping costs and delivery times that the seller does not print are never guessed.

• Every dollar figure ties to a printed pack price
• Daily costs assume the label's two droppers a day
• Dates use US format and carry a last-updated stamp

We disclose it on the About page, in each page's byline box and in the order panels. We earn a payment when a reader buys through our links.

The FTC expects connections like this to be disclosed clearly and where readers will see them (FTC, Endorsement Guides Q&A). We are a retailer of the product, not a neutral reviewer, and we say that too.

Money never decides what a page says. A weak point stays on the page even if it costs a sale. Read more on about this website.

A short core of sources supports most statements on this site: the labeling rule, FDA supplement basics, FTC advertising guidance and NCCIH advice on using supplements.

1. 21 CFR 101.36 - Nutrition labeling of dietary supplements. Electronic Code of Federal Regulations (eCFR), FDA labeling regulation, n.d..Sets out what goes on the Supplement Facts panel: serving size under the title, amounts that show the weight of the ingredient itself rather than its source, and % Daily Value rounded to the nearest whole percent (shown as less than 1% when it rounds to zero). Protein is omitted from products containing only individual amino acids. Dietary ingredients with no Daily Value are listed by common name in metric units with an asterisk pointing to a 'Daily Value not established' footnote. A 'Proprietary Blend' (or similar term) is shown with the blend's total weight on its own line, and the ingredients within it are indented and listed in descending order of predominance by weight; the page text read does not require the weight of each individual blend ingredient. Vitamins and minerals follow a fixed order, not weight order. Source ingredients may be named in parentheses or must appear in the ingredient statement outside the panel, and botanicals must name the plant part. Minimum type sizes (generally 8 pt) apply. The page text read shows no revision date.
2. Dietary Supplements. U.S. Food and Drug Administration, 2024.The FDA oversees finished supplement products and their ingredients under rules separate from those for conventional foods and drugs, framed by the Dietary Supplement Health and Education Act of 1994. Manufacturers and distributors must evaluate safety and labeling before marketing; the page implies FDA does not approve supplements before sale and acts against adulterated or misbranded products once they are on the market (the page says this by implication, not in so many words). Content current as of October 1, 2024.
3. Health Products Compliance Guidance. Federal Trade Commission, 2022.Published December 20, 2022, replacing the FTC's 1998 supplement advertising guide; it is business guidance, not law, and offers no safe harbor. Advertisers need adequate substantiation before making objective claims, and health claims generally need competent and reliable scientific evidence, which generally means randomized, controlled human clinical testing. Observational studies show association not causation, and animal or lab studies alone are not sufficient. Evidence must match the product, dose, population and outcome claimed, and the totality of evidence counts, not only favorable studies. Testimonials are not scientific evidence; typical-results disclosures must say what consumers can expect, and 'results not typical' is not enough; material connections must be disclosed. Only the first 100,000 characters were read.