🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 5% of ingredients have research evidence
B Label Compliance Grade

Product Label

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Label Data

2 Tbsp Serving Size
15 Servings
Amino acid/Protein Product Type
5% Evidence Coverage

Supplement Facts — Evidence Check

Calories
60 {Calories}
Protein
16 g
Sodium
55 mg (2% DV)
L-Alanine
1306 mg
1197 mg
📊 Market median: 500.0mg (143 products)
This product: 1197mg
📊 Market median: 2000.0mg (63 products)
Median 2000.0mg This product: 699mg
L-Glutamic Acid
1554 mg
Glycine
3622 mg
L-Histidine
139 mg
📊 Market median: 500.0mg (159 products)
Median 500.0mg This product: 233mg
186 mg
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 186mg
404 mg
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 404mg
513 mg
📊 Market median: 500.0mg (159 products)
Median 500.0mg This product: 513mg
139 mg
📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews
This product: 139mg
L-Phenylalanine
248 mg
L-Proline
2130 mg
L-Serine
528 mg
L-Threonine
295 mg
93 mg
📊 Market median: 500.0mg (223 products) 📚 22 studies (Tier A: 0, B: 1)
This product: 93mg
L-Valine
342 mg

Other Ingredients

purified Water Hydrolyzed Gelatin Citric Acid Artificial flavor Sodium Benzoate Potassium Sorbate

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Shake well before using.

DIRECTIONS: For adults, take two (2) tablespoons (30 mL) three times daily, diluted with water.

⚠️ Warnings & Precautions

Do not use if outer seal is broken or missing.

NOTICE: USE THIS PRODUCT AS A FOOD SUPPLEMENT ONLY. DO NOT USE FOR WEIGHT REDUCTION

Not intended for use by persons under the age of 18. Keep out of reach of children.

WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

🧪 Formulation Notes

ARTIFICIALLY FLAVORED

No Artificial Color or Sweetener, No Sugar, No Starch, No Milk, No Lactose, No Soy, No Gluten, No Wheat, No Yeast, No Fish.

Precision Engineered’s Liquid Aminos are specially formulated for bodybuilders and athletes.

Additional Information

Store unopened container at room temperature. Refrigerate after opening for best results.

HARDCORE SERIES PRECISION ENGINEERED(R)

PROD. # 837 B837 07E

Pro-Amino Fuel* ~BROAD SPECTRUM FORMULA ~EASILY DIGESTED

Precision Engineered has pioneered the manufacture of premium sports nutrition supplements. Our commitment to quality is the highest in our industry. Every product undergoes rigorous analysis for purity, potency, safety and freshness. We guarantee it.

QA QUALITY ASSURED

Our unique formula contains a blend of essential and non-essential amino acids designed to support exercise and post-exercise states, or to be used any time as part of your nutrition plan.* Amino Acids are the building blocks of protein, which plays a role in overall health.*

Product Details

UPC / SKU 0 74312 70837 4
DSLD Entry Date 2013-05-24
Product Type Amino acid/Protein
Form Liquid
DSLD ID 21045
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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