No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

L-Ornithine HCl 1000 mg Capsules Ingredients & Drug Interactions

by BulkSupplements.com

Capsule Category: Amino Acid/protein
No known interaction
The interaction bottom line No known interaction

L-Ornithine HCl 1000 mg Capsules is a dietary supplement by BulkSupplements.com with 1 active ingredient. Its ingredients are commonly taken for athletic performance and recovery, reducing fatigue, sleep and stress support.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.

HelloPharmacist Scorecard of L-Ornithine HCl 1000 mg Capsules by BulkSupplements.com

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: L-ornithine hydrochloride, an amino acid, at 1000 mg per capsule. The capsule itself is made from bovine gelatin.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded Ornithine's overall clinical evidence instead.

Moderate

Some clinical evidence supports Ornithine for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Athletic performance — rated "Possibly Effective" (Natural Medicines).

L-ornithine has possibly effective evidence for athletic performance. For dry skin, insomnia, and periodontitis (gum disease), the evidence is insufficient—we don't have enough reliable data to know whether it works.

If you're thinking about it for one of those other reasons, talk with your pharmacist or doctor about whether the science supports it for your situation.

The evidence, ingredient by ingredient Ornithine

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

L-ornithine is generally well tolerated over the short term, but we don't have good long-term safety data, so extended use is unclear. The safety data advises against use during pregnancy and breastfeeding—there isn't enough information to know it's safe for you or your baby.

If you're pregnant, breastfeeding, or planning to become pregnant, talk with your doctor or pharmacist before starting this supplement.

Side effects, ingredient by ingredient Ornithine

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the ingredient in this product. That said, always run your exact medications through the checker below before you start.

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. No medication interactions are currently documented, and some safety-information gaps remain.

L-ornithine may be worth trying if you're an athlete looking to support performance. If you're pregnant, breastfeeding, or planning to conceive, avoid it.

Long-term use is an open question—check with your pharmacist if you're thinking of taking this for months or longer.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jul 25, 2024.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about L-Ornithine HCl 1000 mg Capsules, straight from the product label.

Brand BulkSupplements.com
Barcode (UPC) X003L0Q1L9
Net contents 180 Capsule(s)
Market status On market
Date entered into DSLD Jul 25, 2024
DSLD ID 312921
Product type Amino Acid/protein
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for L-Ornithine HCl 1000 mg Capsules by BulkSupplements.com, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
90
UPC/BARCODE
X003L0Q1L9
IngredientAmount% DV
L-Ornithine Hydrochloride1000 mg--

Other ingredients: Bovine Gelatin

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

L-Ornithine Capsules 1000 mg per serving

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take 2 capsules once daily, or as directed by a physician.

FDA Disclaimer Statement

Warning: This product is not intended to diagnose, treat, cure, or prevent any disease.

Formulation

Always consult a physician before taking any dietary supplement.

Free of: Added sugar, soy, dairy, yeast, gluten, additives

Precautions

Keep out of reach of children.

Storage

Store in a dry, cool place

General Statements

New Scan Me

See for yourself

L-Ornithine HCl 1000 mg Capsules by BulkSupplements.com label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in L-Ornithine HCl 1000 mg Capsules by BulkSupplements.com

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

L-Ornithine Hydrochloride

No known
interactions
1000 mg per serving

Ornithine is a non-essential amino acid your body makes naturally as part of the urea cycle, which helps remove ammonia. It is sold as a supplement fo...

L-Ornithine Hydrochloride monograph & interactions

Other (inactive) ingredients: Bovine Gelatin. These complete the product’s ingredient list but are not active constituents.

Interaction report

L-Ornithine HCl 1000 mg Capsules by BulkSupplements.com Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in L-Ornithine HCl 1000 mg Capsules. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for L-Ornithine HCl 1000 mg Capsules, from the product label.

BulkSupplements.com

See all BulkSupplements.com products
Name
BulkSupplements.com
Street Address
7511 Eastgate Rd
City
Henderson
State
NV
ZipCode
89011
Web Address
BulkSupplements.com
Pharmacist Counseling Corner

L-Ornithine HCl 1000 mg Capsules by BulkSupplements.com: Common Questions

Does L-Ornithine HCl 1000 mg Capsules by BulkSupplements.com interact with any medications?
We do not currently list a known interaction for the mapped ingredients in L-Ornithine HCl 1000 mg Capsules. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
L-Ornithine HCl 1000 mg Capsules contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is L-ornithine safe to take long-term?
The short-term safety profile looks good, but we don't have solid data on long-term use. If you're thinking about taking it regularly for more than a few weeks or months, check in with your pharmacist or doctor first.
Can I take this while pregnant or breastfeeding?
The safety data advises against it—there isn't enough information to know whether it's safe for you or your baby. Talk with your doctor before using it if you're pregnant, breastfeeding, or planning to become pregnant.
Does L-ornithine actually help with athletic performance?
The evidence suggests it possibly effective for athletic performance, which means there's some promising data but it's not definitive. Your results may vary, and it's worth discussing with a trainer or sports medicine provider to see if it fits your goals.
What's in the capsule besides the L-ornithine?
The capsule itself is made from bovine gelatin—that's the only other ingredient. If you need a vegan or vegetarian option, you'll want to look elsewhere.
Can this help with insomnia or dry skin?
The evidence for both is insufficient—we don't have enough reliable data to say whether it works for those. If you're hoping to treat either of those issues, talk with your pharmacist about other options with stronger evidence.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if L-Ornithine HCl 1000 mg Capsules is safe with your meds?

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Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

L-Ornithine HCl 1000 mg Capsules label
Go deeper

The Full Monographs Behind L-Ornithine HCl 1000 mg Capsules’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Sources

Sources & How We Checked

L-Ornithine HCl 1000 mg Capsules's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 1 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Ornithine 1 reference
  1. Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source

See these in context on the Ornithine monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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