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Iso-Stak

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

This product looks safe

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

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This profile contains B vitamins and zinc, which support energy metabolism and immune function with strong evidence. The inclusion of isoflavone derivatives aims to modulate hormonal activity, though research evidence for these specific compounds is limited. Overall, the ingredients are generally recognized as safe.

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

Label

Product Label

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

Label Data

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

Supplement Facts — Evidence Check

3.5 mg (175% DV)
2.7× RDA — within safe limits 114 studies (A:3, B:35)
10 mg (50% DV)
Within RDA (0.7× RDA) 196 studies (A:5, B:63)
10 mg (67% DV)
Within RDA (0.9× RDA) 263 studies (A:6, B:134)
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
Market median: 125.0mg (294 products) 38 studies (A:1, B:7)

Other Ingredients

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

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

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

Metadata

Product Details

UPC / SKU0 39442 05169 1
DSLD Entry Date2014-10-27
Product TypeOther Combinations
FormCapsule
BrandUniversal
DSLD ID37775
Data Updated2026-04-11
Research

Research Evidence

153
Research Sources
55
Avg Quality
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
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
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 →
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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.