Buying supplements should not require a science degree. It should require a checklist — and the patience to use it. This is the honest supplement buyer's manifesto: ten principles, in plain English, for anyone who buys supplements.

One: the label is the product. A product is what its label says — the ingredients, the doses, the form, the warnings, the directions. A product that hides its doses in a proprietary blend is a product that is hiding something. A product that lists its doses, plainly, is a product worth considering. Read the label — every time, before you buy.

Two: the dose is the evidence. An ingredient studied at 500 mg a day, present at 50 mg in the product, is not evidence for the product — it is evidence for a different dose. A product that contains an ingredient at the studied dose is a product worth trying. A product that does not is a product that is unlikely to work — whatever the marketing claims. Check the dose against the research.

Three: the form matters. An ingredient in a form that is absorbed well is worth more than one in a form that is not — and the difference is worth paying for, if the evidence supports it. A product that uses a cheap form, and charges a premium price, is a product that is overcharging you. Check the form, and the evidence for it.

Four: the study is the claim. A claim that cannot be traced to a study — the same ingredient, the same form, the same dose, in a comparable population, measuring a clinical outcome — is a claim that cannot be trusted, however scientific it sounds. A claim that can be traced is a claim worth considering. Check the study, not the sound.

Five: the certificate is the proof. A brand that tests every batch, and publishes every certificate, is giving you something verifiable. A brand that does not test, or does not publish, is asking you to trust it — without evidence. Ask for the certificate for your batch, and check the date.

Six: the brand is the promise. A brand that is transparent — about its sourcing, its testing, its manufacturing, its customer service — is a brand worth trusting. A brand that is opaque is a brand that is hiding something. Check the brand, not the claims.

Seven: the price is not a verdict. A cheap product may be good value — or it may be weak, untested, or contaminated. An expensive product may be worth it — or it may be overpriced. Check the dose, the form, the testing, the sourcing, the brand and the evidence — and let the evidence, not the price, decide.

Eight: the doctor is the expert on you. A product that is safe for most people may not be safe for you. A product that works for most people may not work for you. Talk to your doctor — especially if you are taking prescription medicines, or managing a medical condition. A five-minute conversation, with a complete list in front of you, is worth far more than a difficult conversation afterwards.

Nine: the baseline is the judge. Before you start, write down how you feel — in a sentence, with a date. A baseline is the only way to judge whether a product has worked. Set a review date — six weeks, eight weeks, twelve weeks — and decide, on that date, whether to continue. A product that does not work, after a fair trial, should be stopped — not swapped for another product that makes the same promise.

Ten: the record is the safety net. Write down the product name, the brand, the dose, the batch number, and the date you started. A list is five minutes to set up, and a minute a week to maintain. If a recall is issued, the batch number tells you whether you are affected. If a side effect appears, the batch number helps the brand and the regulator identify the problem.

Ten principles. Label, dose, form, study, certificate, brand, price, doctor, baseline, record. A buyer who follows them is a buyer who cannot be misled — by marketing, by claims, by percentages, by testimonials, by jargon. A buyer who follows them is a buyer who decides on evidence.

Independent reviews can help you follow the manifesto. Thesupplementrating.com publishes evidence-led reviews that start with the label, check doses against research, examine testing disclosure and state their limits plainly — and its safety checklist covers the five checks that matter most before you buy. A botanical memory formula review shows the method in practice: label first, dose second, evidence third, verdict last.

You do not need a science degree to buy supplements. You need a manifesto — ten principles, in plain English — and the patience to use it. Label, dose, form, study, certificate, brand, price, doctor, baseline, record. Let the evidence, not the marketing, decide.