🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

📸

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Label Data

18 Gram(s) Serving Size
34 Servings
Other Combinations Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Calories
35 Calorie(s)
Total Carbohydrates
9 Gram(s) (3% DV)
1.5 Gram(s)
📊 Market median: 500.0mg (143 products)
This product: 1.5mg
L-Ornithine
1.5 Gram(s)
500 mg
📊 Market median: 500.0mg (159 products)
Median 500.0mg This product: 500mg
2 Gram(s)
📊 Market median: 420.0mg (227 products)
Median 420.0mg This product: 2mg
Glycine
2 Gram(s)
GABA
500 mg

Other Ingredients

Fructose Citric Acid Silicon Dioxide Malic Acid Natural flavors Beet powder organic Stevia leaf extract

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (100% of products) Structure/Function (91% of products) Nutrient (35% of products)

Target Groups

Adult (18 - 50 Years) Kosher Women (not pregnant or lactating) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested Usage: Mix 1 level scoop with 4-6 oz. of water or juice. For best results take on an empty stomach 20 minutes before bed or exercise - 5 days on/2 days off.

⚠️ Warnings & Precautions

Caution: For adults only. This product may cause temporary, but transient GI discomfort.

Do not use if pregnant or nursing. Consult physician if taking medication (including those that affect kidney function or blood pressure) or have a medical condition (including glaucoma, herpes simplex, impaired kidney function, coronary artery disease, or if you have had a myocardial infarction).

Keep out of reach of children.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

🧪 Formulation Notes

NOW Sports Pro-GH is an amino acid supplement formulated to support optimal sports performance. Pro-GH has arginine, ornithine, lysine, and glutamine, which are critical for normal endocrine function and help to promote muscle tissue growth and recovery. These same amino acids are essential for the production and maintenance of nitric oxide (NO) within blood vessels, further supporting the body's optimal response to intense physical training. Glycine, known for its role in glycogen synthesis, has been included to support muscular energy output. Finally, glutamine and glycine help to support healthy immune system responses, especially during times of physical stress and intense exercise. NOW Sports Pro-GH thus combines the amino acids needed to help attain your training goals into one convenient product.

Amino acids

Muscle recovery Nitric oxide promoter

6 power aminos

Triangle K

Steroid free No aspartame No sucralose No artificial sweeteners No acesulfame-k

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Natural color variation may occur in this product.

Additional Information

GMP Quality Assured

Informed-sport.com Trusted by sport Informed-choice.org Trusted by sport

Steroid free Triangle K

This product is sold by weight not volume.

Store in a cool, dry, dark place after opening.

Product Details

UPC / SKU 7 33739 00207 5
DSLD Entry Date 2019-12-22
Product Type Other Combinations
Form Powder
Brand NOW Sports
DSLD ID 210369
Data Updated 2026-04-11

Research Evidence

45 Research Sources
52 Avg Quality Score
12 Rct
11 Systematic Review
11 Meta Analysis
11 Clinical Trial
A Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
Meta Analysis The Cochrane database of systematic reviews 2017
A Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Meta Analysis The Cochrane database of systematic reviews 2017
B Nutritional interventions for treating foot ulcers in people with diabetes
Meta Analysis The Cochrane database of systematic reviews 2020
B Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
Systematic Review The Cochrane database of systematic reviews 2002
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2007
B The Effect of Amino Acids on Wound Healing: A Systematic Review and Meta-Analysis on Arginine and Glutamine
Meta Analysis Nutrients 2021
B Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute ischaemic stroke
Systematic Review The Cochrane database of systematic reviews 2000
B Dietary Supplements for Erectile Dysfunction: Analysis of Marketed Products, Systematic Review, Meta-Analysis and Rational Use
Meta Analysis Nutrients 2023
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2004
B An Analysis of Popular Online Erectile Dysfunction Supplements
Systematic Review The journal of sexual medicine 2019
View all evidence for L Arginine →

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