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Are Melonex Capsules Vegetarian? The HPMC Shell
Are Melonex capsules vegetarian? The shell is hydroxypropyl methylcellulose (HPMC), a plant-cellulose, non-gelatin material, so it contains no animal gelatin. The label carries no vegetarian or vegan seal, though, and it does not state the source of every ingredient. Ask customer service if strict sourcing matters to you.
Written by the Melonex label deskUpdated · 4 min read

Are Melonex capsules vegetarian or made with gelatin?
The Melonex shell is made of hydroxypropyl methylcellulose, usually shortened to HPMC. It is a plant-cellulose material, and it is not gelatin, which comes from animal collagen.
So the one part many vegetarians ask about is plant-based. The rest of the label is less specific, as the table shows.
| Label line | Role | Source stated? |
|---|---|---|
| Hydroxypropyl methylcellulose | Capsule shell | Plant cellulose, non-gelatin |
| L-Citrulline DL-Malate | Blend | Not stated |
| L-Arginine AKG | Blend | Not stated |
| L-Arginine HCL | Blend | Not stated |
| Microcrystalline cellulose | Filler | A cellulose, so plant-derived |
| Magnesium stearate | Flow agent | Stearic acid from "edible sources" (21 CFR 184.1440, magnesium stearate) |
What does the label not say about animal-free sourcing?
It does not say the capsules are vegan or vegetarian certified. There is no such seal on the bottle, and the three amino acids are listed without their source.
Magnesium stearate is made from stearic acid, and FDA describes that only as coming from edible sources (21 CFR 184.1440, magnesium stearate). Edible sources can be plant or animal. A proprietary blend also lists its parts but not how they were made (21 CFR 101.36, blends).
No gelatin shell: yes. A full vegan guarantee: not on the label.

How can you confirm a vegetarian diet fits?
Ask the distributor in writing and keep the reply. It takes a few minutes.
Write to customer service
Use [email protected], the address printed on the bottle.
Ask three things
The source of the magnesium stearate, how the amino acids are made, and whether any lab or certifier has confirmed it.
Decide
If the answer is vague, treat the product as unconfirmed.
Also see the capsule and other ingredients page. Keep taking prescribed medicine, whatever you decide about a supplement.

Melonex: from $49 a bottle60 capsules · 2, 3 or 6 bottles · free US shipping on 3 or 6 · 60-day guarantee
See packsWhich Melonex pack suits you?
If the answer from customer service fits your diet, these are the two larger packs.
Free US shipping3 bottles · $207$69 a bottle · 180 days at 1 capsule a day · free US shippingChoose 3 bottles
Lowest per bottle6 bottles · $294$49 a bottle · 360 days at 1 capsule a day · free US shippingChoose 6 bottlesSales-page prices, October 18, 2026 (Melonex sales page). A 2-bottle pack is also sold ($158 plus $9.99 shipping). See every pack on the pricing page.
FDA disclaimer. These statements have not been evaluated by the Food and Drug Administration. Melonex is not intended to diagnose, treat, cure, or prevent any disease. Keep taking prescribed medicine, and ask your doctor before starting any supplement.
FAQ01
Melonex questions people ask
Are Melonex capsules vegan?
Not confirmed. The shell is plant cellulose, but the label shows no vegan seal and does not state where the amino acids or magnesium stearate come from.
What is HPMC in a capsule?
HPMC is hydroxypropyl methylcellulose, a plant-cellulose shell material used instead of gelatin.
Are Melonex capsules halal or kosher?
The label shows no halal or kosher certification. Ask customer service in writing, and ask for any certificate they can send.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, AHA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by a USA authorized Melonex retailer, not by the manufacturer or the distributor. We earn money when you buy through our order links.
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