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L-Ornithine

amino acid

75
products
Updated April 2026

Dosage Range

0 mgavg 456.2 mg4000 mg

L-Ornithine is found in 161 supplement products from 48 brands. Dosages range from 0 to 4000 mg, with an average of 456.2. The most common form is Capsule.

Top 5 Highest-Dosage L-Ornithine Supplements

  1. Ornithine 500 mg by Dr. Clark Store4000 mg
  2. L-Ornithine 500 mg by NOW1500 mg
  3. Cocoa HGH by DaVinci Laboratories1000 mg
  4. Maxi-HGH by DaVinci Laboratories1000 mg
  5. L-Arginine L-Ornithine 2500 by GNC Pro Performance1000 mg

Ornithine 500 mg by Dr. Clark Store has the highest L-Ornithine dosage at 4000 mg. Pro-GH by NOW Sports has the lowest at 1.5 Gram(s).

All Products

showing 75 of 75
L-Ornithine 500 mgNOW
1500 mg DVCapsule
Maxi-HGHDaVinci Laboratories
1000 mg DVPowder
Arginine & OrnithineGNC Pro Performance
1000 mg DVTablet or Pill
L-Ornithine 500 mgSolgar
500 mg DVCapsule
Super Amino NightSource Naturals
500 mg DVTablet or Pill
Awe Slim!NOW
500 mg DVLiquid
L-OrnithineTwinlab
500 mg DVCapsule
L-Ornithine 500 mgSwanson
500 mg DVCapsule
Nugenix GH-Boost Tea-Berry BlastNugenix
400 mg DVOther (e.g. tea bag)
Tri-AminoNOW
400 mg DVCapsule
Nighttime RecoveryAdvoCare
200 mg DVOther (e.g. tea bag)
FocusQualia
200 mg DVCapsule
HyperGH 14xLeading Edge Health
100 mg DVTablet or Pill
Liver CareBeyond Health
40 mg DVCapsule
GH MALENaturesPlus
30 mg DVCapsule
Amino 1000Precision Engineered
30 mg DVOther (e.g. tea bag)
Total TMNutri-West
10 mg DVTablet or Pill
Whole System LymphNutri-West
3 mg DVTablet or Pill
L-Ornithine 667 mgSource Naturals
2 Gram(s) DVCapsule
L-Ornithine PowderSource Naturals
1.9 Gram(s) DVPowder
Max BrainXYMOGEN
1 mg DVCapsule
Maxi-HGHDiscontinuedDaVinci Laboratories of Vermont
1000 mg DVPowder
Maxi-HGHDiscontinuedDaVinci Laboratories Of Vermont
1000 mg DVPowder
L-Arginine L-OrnithineDiscontinuedGNC Pro Performance
1000 mg DVTablet or Pill
Cocoa HGHDiscontinuedDaVinci Laboratories of Vermont
1000 mg DVPowder
L-OrnithineDiscontinuedNOW Sports
800 mg DVPowder
Arginine & Ornithine 500/250DiscontinuedNOW Sports
500 mg DVCapsule
L-Arginine L-Ornithine CapsDiscontinuedCountry Life
293 mg DVCapsule
L-Arginine L-Ornithine 500 mg/250 mgDiscontinuedSolgar
250 mg DVCapsule
Arginine + OrnithineDiscontinuedJarrow Formulas
250 mg DVTablet or Pill
Arginine + Ornithine 750 mgDiscontinuedJarrow Formulas
250 mg DVTablet or Pill
L-Arginine L-Ornithine 500 mg / 250 mgDiscontinuedSolgar
250 mg DVCapsule
L-Arginine L-Ornithine 500/250DiscontinuedSolgar
250 mg DVCapsule
Advanced Night TrimDiscontinuedExtreme Products
150 mg DVCapsule
Mega ForceDiscontinuedNature's Plus
50 mg DVTablet or Pill
GH MaleDiscontinuedNature's Plus
30 mg DVCapsule
Amino 1000DiscontinuedNOW
24 mg DVCapsule
Amino BlendDiscontinuedPL Progressive Laboratories
23 mg DVCapsule
Zow Multi-Vites For Teenage BoysDiscontinuedNutrition Now
20 mg DVTablet or Pill
Core Level Adrenal 120 TabletsDiscontinuedNutri-West
10 mg DVTablet or Pill
Pro-GHDiscontinuedNOW Sports
1.5 Gram(s) DVPowder

Frequently Asked Questions

How many products contain L-Ornithine?

There are 161 supplement products containing L-Ornithine from 48 brands in the NIH DSLD database.

What is the average L-Ornithine dosage?

The average L-Ornithine dosage across supplement products is 456.2 mg. Dosages range from 0 to 4000 mg.

What is the most common form for L-Ornithine supplements?

The most common product form for L-Ornithine supplements is Capsule.

What brands make L-Ornithine supplements?

There are 48 brands that make supplements containing L-Ornithine in the NIH DSLD database.

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Quick Facts

Products
161
Brands
48
Avg Dose
456.2 mg
Common Form
Capsule
Category
amino acid