Answer: Read a Supplement Facts panel from the top down: serving size and servings per container, then the amount of each ingredient per serving, then the Daily Value column, then the ingredient forms, other ingredients and warnings. In two minutes you can tell how much you are really taking, how long a bottle lasts and whether the label gives enough detail to compare with research.
- Serving size tells you how many capsules the amounts refer to.
- Amino acids like arginine have no Daily Value, so you will see an asterisk.
- The form, such as HCl or AKG, changes how much active amino acid you get.
- Other ingredients, directions and warnings sit below the main panel.
Seconds 0 to 30: serving size and servings
Start at the top of the box. Serving size tells you how many capsules every number below refers to. If it says two capsules, then the milligrams listed are for two capsules together, not one. Servings per container tells you how long the bottle lasts at the label dose.
A quick example: a 60-capsule bottle with a serving of two capsules has 30 servings, so it is a one-month supply when taken once a day. That matches how the seller describes Melonex, though the label on your bottle is what to follow.
The NIH Office of Dietary Supplements stresses that labels must list the amount of each dietary ingredient per serving, which is why this first line matters so much. Everything else on the panel depends on it.
Seconds 30 to 60: amount per serving and Daily Value
The middle of the panel lists each ingredient with an amount, usually in milligrams (mg) or micrograms (mcg). To the right is the % Daily Value, which compares the amount to a reference intake for nutrients that have one, such as vitamin C or potassium.
Amino acids such as L-arginine and L-citrulline have no official Daily Value. Instead of a percentage, you will see an asterisk with a footnote that reads something like "Daily Value not established". That is normal and not a warning sign.
What you want is a specific number next to each ingredient. If several ingredients sit under one heading with a single total, you are looking at a blend, which our guide to proprietary blends covers. The FDA sets the rules for this layout, but it does not check each label before sale.
Seconds 60 to 90: forms, other ingredients and warnings
Look at the words in brackets or after "as". "L-Arginine (as L-Arginine HCl)" tells you the compound used. Salt and compound forms carry extra weight, so 1,000 mg of a compound does not mean 1,000 mg of the pure amino acid. Arginine AKG, for instance, pairs arginine with alpha-ketoglutarate, and citrulline DL-malate pairs citrulline with malic acid. Our Melonex ingredients label guide explains these three forms.
Below the panel, read Other ingredients: the capsule shell, such as gelatin or plant cellulose, and any fillers or flow agents. This matters if you avoid animal products or have allergies. Then read the directions, the warnings, the lot number, the expiration date and the manufacturer's name and address. The table below lists each part and what it tells you.
| Panel part | What it tells you |
|---|---|
| Serving size | How many capsules the listed amounts cover |
| Servings per container | How many days the bottle lasts at the label dose |
| Amount per serving | Milligrams of each ingredient, or a blend total |
| % Daily Value | Comparison to reference intakes; asterisk if none exists |
| Other ingredients | Capsule shell, fillers and possible allergens |
| Directions and warnings | How to take it and who should ask a doctor first |
Worked example: two labels side by side
Imagine two made-up heart formulas on a store shelf. Label A lists "L-Arginine (as HCl) 1,000 mg" and "L-Citrulline 500 mg" per two capsules, each on its own line. Label B lists "Circulation Blend 1,500 mg" with four ingredients beneath it and no individual amounts.
In two minutes, Label A tells us exactly what we take each day and lets us compare it with doses used in studies. Label B tells us the total and the order of ingredients by weight, but not whether the first ingredient is most of the blend or barely more than the second. Neither label tells us whether the product works, but A gives us much more to check.
When we review a real bottle, we do the same thing: photograph the panel, note each amount and form, and check the directions against the seller's description.
Applying this to a Melonex bottle
Melonex lists three amino acid compounds: L-citrulline DL-malate, L-arginine alpha-ketoglutarate (as a dihydrate) and L-arginine HCl. The brand has not published milligram amounts online, so the Supplement Facts panel on the bottle is the authority. Read it when your order arrives, before the first capsule, and keep a photo so you can share it with your doctor or pharmacist.
Our Melonex ingredients page explains each compound, and what is Melonex gives the overview. If anything on the panel is unclear, the Melonex questions and answers page covers common label questions.
Where does a capsule like this fit? After food, movement, sleep and your doctor's advice. Reading the label well is part of using any supplement responsibly, and only bottles from the Melonex official website carry the brand's stated guarantee.
What a label can and cannot tell you
A Supplement Facts panel tells you what the company says is inside and how much. It does not prove the contents, the purity or the effect. Supplements are not approved by the FDA before sale, and MedlinePlus notes that the quality of supplements can vary. Independent testing seals and GMP statements add some reassurance about manufacturing, not about results.
The label also cannot tell you whether a product is right for you. Arginine and citrulline can add to the effect of blood pressure medicines, nitrates and erectile dysfunction drugs, and they are not advised after a recent heart attack without medical approval. Ask your doctor or pharmacist first if you take any regular medicine or have kidney, liver or heart disease, and stop and seek care if you notice anything worrying after starting.
Read the panel, then compare prices
Once you know what is in the bottle, check the Melonex discount packages and cost per day.
Visit the Melonex Official WebsiteFrequently asked questions
Why does arginine show an asterisk instead of a percentage?
Because no Daily Value has been set for arginine or citrulline. The asterisk simply points to a footnote saying so.
Is 1,000 mg of arginine HCl the same as 1,000 mg of arginine?
No. The HCl part adds weight, so the arginine content is somewhat lower than the compound weight. The same applies to AKG and malate forms.
Where is the lot number?
Usually printed on the bottom or side of the bottle near the expiration date. Keep it in case you need to contact the maker.