How to Read a Memory Supplement Label: 7 Steps With Memodyne as the Example

An ad is written to sell. A Supplement Facts panel is written to meet a rule. Federal regulations require the panel to list each dietary ingredient with its amount per serving (21 CFR 101.36). That makes the panel the most reliable part of a bottle, and the easiest to check in your kitchen.

The steps below follow the panel from top to bottom. We use the Memodyne label because it is short and every line has a number. You can use the same steps on any memory, focus or brain supplement.

Here is the panel as printed. One serving is one capsule, and the bottle holds 30 servings.

Other ingredients: hypromellose (a vegetable capsule), vegetable stearate and silicon dioxide. The directions say to take one capsule daily with an 8 oz glass of water, ideally 20-30 minutes before a meal.

Start with the serving size. If a label says two capsules, every number below it is for two. A shopper who compares a one-capsule product with a two-capsule product on raw numbers will get the wrong answer.

Then read the amounts. A good panel gives each ingredient its own figure in milligrams or micrograms. Memodyne does. Add the five amino acid lines and you get 640 mg, so you can see how much of the capsule is the active material.

The percentage tells you how much of a day's reference amount one serving gives. Niacin at 7.5 mg NE shows 47%, which fits with adults needing 14 to 16 mg NE a day (NIH ODS, Niacin). Calcium at 18 mg shows 1.5%, because adults need 1,000 to 1,200 mg a day (NIH ODS, Calcium).

The dagger is not a warning. It means no Daily Value has been set, as is the case for amino acids. It also means the label gives you no scale, so you must find one yourself, such as the doses used in studies.

Look for a name followed by one total and a list of ingredients under it, such as “Brain Blend 500 mg” (a made-up example). The maker may put most of the weight in the cheapest item, and you cannot check. Memodyne has no such line.

Many amino acids are sold bound to another molecule. The Memodyne label lists arginine as base and as AKG, and citrulline as HCl and malate. The extra part, alpha-ketoglutarate, hydrochloride or malic acid, adds weight. So 100 mg of citrulline HCl holds less than 100 mg of pure citrulline.

That does not make the forms wrong. It means the printed number is the weight of the whole ingredient, not of the amino acid alone. When you compare doses with a study, remember that small difference.

Read the other ingredients and the caution panel. Memodyne's caution says not to exceed the recommended dose, and it names pregnant or nursing mothers, children under 18 and people with a known medical condition as groups who should consult a physician first. It also says to keep the bottle out of reach of children and not to use it if the safety seal is damaged or missing.

Add your own cautions to the label's. Arginine and citrulline may lower blood pressure and add to blood pressure drugs, nitrates and ED pills (Mayo Clinic, L-arginine). If you take any of those, the printed caution is only the start of the conversation with your doctor.

Find the name and address. Memodyne's label names Gex Corporation LLP, PO Box 12730, Ogden, UT 84404, as distributor and says the product was manufactured in the USA with globally sourced ingredients. It does not name the factory.

Then find the statement beside the asterisk on the front: these statements have not been evaluated by the Food and Drug Administration, and the product is not intended to diagnose, treat, cure or prevent any disease. The FDA does not approve dietary supplements before sale (FDA, Q&A on Dietary Supplements), so a label cannot carry an approval.

It tells you what is in the capsule. It does not tell you whether the capsule works. No study of Memodyne has been published, and its doses are small next to the doses in research. A tidy panel is a floor for trust, not a ceiling.

Our view is that label reading is the cheapest skill a supplement buyer can learn. It takes minutes and it works on any brand. Memodyne gives you a clean sheet to practice on, with numbers on every line and no blend.

Keep a photo of the panel on your phone. Show it to your pharmacist along with your medicine list, and let that conversation, not the front of the bottle, decide whether it is right for you.

Last updated October 29, 2026