Iso-Stak

product on market Capsule Universal 🟢 Safety: 100/100
Brand: Universal
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 40% of ingredients have research evidence
A Label Compliance Grade

Product Label

Label for Iso-Stak
📄 Open Full PDF View on NIH DSLD →
📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

1 Capsule(s) Serving Size
60 Servings
Other Combinations Product Type
40% Evidence Coverage

Supplement Facts — Evidence Check

3.5 mg (175% DV)
✅ 2.7× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 3.5mg UL 100mg
10 mg (50% DV)
✅ Within RDA (0.7× RDA of 14 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 10mg UL 35mg
10 mg (67% DV)
✅ Within RDA (0.9× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 10mg UL 40mg
5-Methyl-7-Methoxyisoflavone
100 mg
7-Isopropoxyisoflavone
100 mg
5,7-Dihydroxyflavone
25 mg
{Beta}-Ecdysterone
25 mg
Isoflavonol(TM)
150 mg
Triboxybol(TM)
200 mg
10 mg
📊 Market median: 125.0mg (294 products) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 10mg UL 3500mg

Other Ingredients

Tribulus terrestris extract Dicalcium Phosphate Pueraria lobata Gelatin Lecithin Cyanotis vaga extract Magnesium Stearate Zinc Oxide Niacinamide Pyridoxine Hydrochloride

Label Claims — Verification

❓ All Other
❓ Structure/Function
All Other (98% of products) Structure/Function (89% of products) Nutrient (43% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

DOSAGE: Take 1 capsules three times daily with meals. Do not exceed 3 capsules in any 24-hour period.

⚠️ Warnings & Precautions

Do not exceed 3 capsules in any 24-hour period.

Do not take this if you have or are at risk for any medical condition or disease.

Please consult with a physician before using this product, especially if you are using any prescription drug, over-the-counter medication, or supplements.

Immediately discontinue use if any side effects occur. For State of California: this product contains a chemical known to the State of California to cause birth defects or other reproductive harm.

For State of California: this product contains a chemical known to the State of California to cause birth defects or other reproductive harm.

Keep out of reach of children.

Athletes should consult with their sanctioning authority before use. Do not exceed recommended dose.

Made in a GMP facility on equipment that processes milk, soy, egg, peanuts, tree nuts, fish, shellfish, and wheat.

WARNING: This product is not for use by anyone under the age of 18.

🧪 Formulation Notes

WHAT IT IS Iso-Stak(TM) is perfect for all natural strength athletes due to its unique nutrition-partitioning potential.

Safe Non-Hormonal Formula

Additional Information

WHO WE ARE Universal Nutrition has been providing cutting edge and staple nutritional supplements to bodybuilders and hard training athletes the world over since 1977. As time passes, certain ideals never go out of style. Honesty. Integrity. Respect. These are the values we uphold and are the bedrock upon which we built our business.

MADE PROUDLY IN THE U.S.A.

HOW WE BACK IT UP What is on label is in the bottle and what is in the bottle will help you reach your goals. We guarantee it. Backed by our 100% Ironclad money back guarantee, we proudly stand behind every item we produce. If for whatever reason you are not satisfied with any product bearing our name, simply return the remainder to your place of purchase with a receipt for a full refund. Our word is our bond.

All-Natural Anabolic Formula / Triple Potency Anabolic Flavone Complex

B2112-G

732-545-3130

Product Details

UPC / SKU 0 39442 05169 1
DSLD Entry Date 2014-10-27
Product Type Other Combinations
Form Capsule
Brand Universal
DSLD ID 37775
Data Updated 2026-04-11

Research Evidence

153 Research Sources
55 Avg Quality Score
71 Systematic Review
51 Meta Analysis
19 Rct
6 Clinical Trial
2 Other
2 Regulatory Source
1 Openfda Safety
A Efficacy of vitamin and antioxidant supplements in prevention of cardiovascular disease: systematic review and meta-analysis of randomised controlled trials
Meta Analysis BMJ (Clinical research ed.) 2013
PubMed DOI
A Homocysteine lowering interventions for preventing cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2009
PubMed DOI
A Intake of vitamin B6, folate, and vitamin B12 and risk of coronary heart disease: a systematic review and dose-response meta-analysis of prospective cohort studies
Meta Analysis Critical reviews in food science and nutrition 2019
PubMed DOI
A Exploring the causal associations of micronutrients on urate levels and the risk of gout: A Mendelian randomization study
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2024
PubMed DOI
A Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes
Meta Analysis The Cochrane database of systematic reviews 2015
PubMed DOI Cochrane
B Prophylactic drug management for febrile seizures in children
Meta Analysis The Cochrane database of systematic reviews 2021
PubMed DOI
B Treatments for Hyperemesis Gravidarum and Nausea and Vomiting in Pregnancy: A Systematic Review
Systematic Review JAMA 2016
PubMed DOI
B The potential role of nutritional components in improving brain function among patients with Alzheimers disease: a meta-analysis of RCT studies
Meta Analysis Neurosciences (Riyadh, Saudi Arabia) 2020
PubMed DOI
B Pyridoxine (vitamin B6) supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2006
PubMed Cochrane
B Effect of ginger in the treatment of nausea and vomiting compared with vitamin B6 and placebo during pregnancy: a meta-analysis
Meta Analysis The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians 2022
PubMed DOI
View all evidence for Vitamin B6 →

Compare Similar Products

Water Ease
Water Ease Designs for Health 100
Mag Aspartate
Mag Aspartate Karuna 100
Vitamin B-6 50 mg
Vitamin B-6 50 mg Kirkman 100
Neuro-Balance 620 Milligrams
Neuro-Balance 620 Milligrams Montiff 100
Vitamin B-6 50 Milligrams
Vitamin B-6 50 Milligrams NutraBio 100
View all Vitamin B6 products →
Vitamin B6 research & evidence Best Vitamin B6 rankings All Vitamin B6 products More from Universal View on NIH DSLD →