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Mass Amino Acid

product on market Tablet or Pill Beverly International Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 25% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

The product contains a mass amino acid hydrolysate blend, which provides protein for muscle recovery and synthesis. There is strong evidence supporting the role of amino acids in supporting lean muscle mass. However, overall evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Mass Amino Acid
Open Full PDF View on NIH DSLD →
Details

Label Data

4 Tablet(s)
Serving Size
125
Servings
Other Combinations
Product Type
25%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
20 Calorie(s)
Protein
4 Gram(s) (8% DV)
Sodium
70 mg (3% DV)
Market median: 500.0mg (180 products) 5 studies (A:0, B:1)

Other Ingredients

Croscarmellose Sodium Microcrystalline Cellulose Silicon Dioxide Magnesium Stearate Stearic Acid Hydroxypropyl Methylcellulose Gum Acacia Hydroxypropyl Cellulose micronized Wax Talc
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Use: Take 4 tablets daily with a meal. For maximum results: Take 1 tablet per 10 lbs of bodyweight per day. Divide your daily allotment of tablets into smaller doses. Take each dose with meals and while working out. Example: A 180-lb athlete would take 18 tablets per day. This allotment might be divided into 4 tablets with each of 3 meals (12 tablets total) plus 6 tablets while working out.

Warnings & Precautions

Contains milk.

Warning: Consult your physician prior to using this product if you are: under 18 years of age; pregnant; nursing; trying to become pregnant; taking medication; or have a medical condition.

Warning: Consult your physician prior to using this product if you are: under 18 years of age; pregnant; nursing; trying to become pregnant; taking medication; or have a medical condition. Keep out of reach of children.

Formulation Notes

Mass Amino Acids is an advanced amino acid nitrogen technology used by natural physique athletes to support the building and preservation of lean muscle mass.

Distinguishing features: Perfect for hard gainers, natural physique athletes, the 40+ (40 years and over), and anyone else committed to doing whatever it takes to make their muscles bigger, fuller, harder and stronger, naturally. Reduces loss of muscle mass and strength during fat-loss or cutting diets and layoff from training, and helps you "regain" muscle faster afterwards.

Advanced amino acid Nitrogen Technology w/ peptide-bonded amino acids

100% money-back guarantee If you are not 100% satisfied after using this product for 60 days, then we will refund your money. No questions asked.

Additional Information

"The Stack of the Century": For years, Beverly customers have been telling us that the combination of Mass Amino Acids and Ultra 40 is the most effective stack they've ever used. Try it for even more dramatic gains.

Metadata

Product Details

UPC / SKU8 57254 00060 3
DSLD Entry Date2025-06-25
Product TypeOther Combinations
FormTablet or Pill
DSLD ID332835
Data Updated2026-04-11
Research

Research Evidence

50
Research Sources
47
Avg Quality
28
Rct
13
Clinical Trial
5
Guideline
4
Systematic Review
A Using a Novel Consensus-Based Chemoinformatics Approach to Predict ADMET Properties and Druglikeness of Tyrosine Kinase Inhibitors.
Guideline International journal of molecular sciences 2025 PubMed DOI
B Australia and New Zealand consensus statement on the cardiovascular management of patients with chronic lymphocytic leukaemia treated with Bruton's tyrosine kinase inhibitors.
Guideline Internal medicine journal 2025 PubMed DOI
B Branched-chain amino acid supplementation for improving growth and development in term and preterm neonates
Systematic Review The Cochrane database of systematic reviews 2020 PubMed DOI
B [Clinical practice guideline on anaplastic lymphoma kinase-tyrosine kinase inhibitors for non-small cell lung cancer (2025 edition)].
Guideline Zhonghua zhong liu za zhi [Chinese journal of oncology] 2025 PubMed DOI
B [Chinese expert consensus on epidermal growth factor receptor tyrosine kinase inhibitors for the treatment of non-small cell lung cancer (2025 edition)].
Guideline Zhonghua yi xue za zhi 2025 PubMed DOI
B Consensus Guideline for the Diagnosis and Treatment of Tyrosine Hydroxylase (TH) Deficiency.
Guideline Journal of inherited metabolic disease 2025 PubMed DOI
B Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating
Rct Cognitive, affective & behavioral neuroscience 2020 PubMed DOI
B Effect of Amino Acid Supplementation on Iron Regulation after Endurance Exercise
Rct Nutrients 2023 PubMed DOI
C Attenuating Muscle Damage Biomarkers and Muscle Soreness After an Exercise-Induced Muscle Damage with Branched-Chain Amino Acid (BCAA) Supplementation: A Systematic Review and Meta-analysis with Meta-regression
Systematic Review Sports medicine - open 2024 PubMed DOI
C The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review
Systematic Review Plant foods for human nutrition (Dordrecht, Netherlands) 2020 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.