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Melonex Ingredients List: Three Active Names and Three Capsule Materials
Melonex lists six ingredients. Three sit in a 500 mg proprietary blend: L-citrulline dl-malate, L-arginine alpha-ketoglutarate dihydrate and L-arginine HCL. Three more make up the capsule: hydroxypropyl methylcellulose, microcrystalline cellulose and magnesium stearate. The amount of each is not printed.
Written by the Melonex label deskUpdated · 5 min read
What is the complete Melonex ingredients list?
Six names, in two groups: three in the blend and three in the capsule.
L-Citrulline dl-Malate
Blend, first name.
L-Arginine (Alpha-Ketoglutarate dihydrate)
Blend, second name.
L-Arginine HCL
Blend, third name.
Hydroxypropyl methylcellulose
The capsule shell.
Microcrystalline cellulose
Other ingredient.
Magnesium stearate
Other ingredient.
That is every name printed. We found no vitamins, herbs or extracts on the label, and we will not add any.
What are the three blend ingredients?
All three are amino acid forms. Two are arginine salts and one is citrulline joined to malic acid.
- 1L- Citrulline dl - Malate167 mg or more of the 500 mg blend
- 2L-Arginine (Alpha-Ketoglutarate dihydrate)under 250 mg of the 500 mg blend
- 3L - Arginine HCLunder 167 mg of the 500 mg blend
From the Supplement Facts panel, in label order. The label prints 500 mg for the whole Proprietary Blend and no amount for any name, so the limits shown come from the order alone. Other ingredients (hydroxypropyl methylcellulose capsule, microcrystalline cellulose, magnesium stearate) are not part of the blend.
The body turns citrulline into arginine, and arginine is a building block for nitric oxide, a molecule that helps blood vessels relax 1. That is background science, not a result for this capsule. No source we read tested Melonex.
Does the order of the names tell you the amounts?
Partly. Blend names must be listed from most to least by weight, which sets a ceiling and a floor for each.
500 mgone Proprietary Blend per capsule, amounts of the three names not printed
Proprietary Blend 500 mg- L-Citrulline DL-Malate167 to 500 mg
- L-Arginine alpha-ketoglutarateup to 250 mg
- L-Arginine HClup to 167 mg
Bars show the widest range the label order allows for each name 2. The real split is not printed.
Under the labeling rule, the first name is at least 167 mg of the 500 mg, the second at most 250 mg and the third at most 167 mg 2. The ranges are all the label allows us to say.
Melonex: from $49 a bottle60 capsules · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsWhat are the capsule materials for?
| Name | Role | Amount |
|---|---|---|
| Hydroxypropyl methylcellulose | Shell that holds the powder | Not published |
| Microcrystalline cellulose | Bulking filler | Not published |
| Magnesium stearate | Helps powder flow during filling | Not published |
These are inactive helpers, listed under other ingredients.
No allergen statement is printed, so we do not call the product allergen-free.
What should you ask before you buy?
Ask for the amount of each blend name and a lab report for your lot, and check the list against your medicines.
Arginine sources warn about blood-pressure medicines, nitrates and sildenafil-type medicines 3. Show the six names above to your pharmacist. The proprietary blend page sets out the questions to send the seller.
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Order 6 bottlesPrices on the Melonex sales page, October 30, 2026 4. Two bottles are also sold for $158, plus $9.99 shipping. Check your medicines with your doctor or pharmacist before you order.
FAQ01
Melonex questions people ask
Does Melonex contain nitric oxide?
No. The list has no nitric oxide. Arginine and citrulline are amino acids that the body uses when it makes it.
Is there any caffeine or herb in Melonex?
None is printed on the label. We found only the six names above.
What does dl-malate mean?
It names the malate part of the citrulline salt. The label does not say how much malate is inside.
Is Melonex gluten-free?
The label does not print a gluten statement, so we cannot say. Ask the order desk for a written answer.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC 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 Melonex 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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Check your medicines first, especially blood-pressure medicine, then pick a pack. Six bottles cost the least per bottle; three and six ship free in the US; every pack carries the 60-day money-back guarantee.
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