🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 14% of ingredients have research evidence
B Label Compliance Grade

Product Label

📸

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Label Data

4 Liquid Softgel(s) Serving Size
18 Servings
Botanical with Nutrients Product Type
14% Evidence Coverage

Supplement Facts — Evidence Check

Calories
40 Calorie(s)
Total Fat
2.5 Gram(s) (3% DV)
Total Carbohydrates
2 Gram(s) (1% DV)
Protein
2 Gram(s)
Medium Chain Triglyceride Oil
2100 mg
675 mg
📊 Market median: 450.0mg (502 products) 📚 28 studies (Tier A: 0, B: 8)
This product: 675mg
240 mg
📊 Market median: 500.0mg (357 products) 📚 1 studies — no high-quality reviews
This product: 240mg
📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews
This product: 200mg
Epimedium Aerial Parts Extract
150 mg
Muira Puama Bark Extract
100 mg
📊 Market median: 450.0mg (390 products) 📚 155 studies (Tier A: 0, B: 63)
This product: 80mg
Cayenne, Powder
60 mg
Beta-Sitosterol
33 mg
BioPerine Complex
6 mg

Other Ingredients

Gelatin Water, Purified Glycerin Beeswax Soy Lecithin Caramel Annatto St. John's Bread Silicon Dioxide Titanium Dioxide Maltodextrin

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (79% of products) Nutrient (9% of products)

Target Groups

Women (not pregnant or lactating) Adult Male (18-50 Years)

Product Information

📋 Directions for Use

Directions: (Adult) For daily maintenance, take four (4) Liquid Soft-Gels per day in divided doses, with meals and a full glass (8oz) of water. For a more immediate response prior to intimacy, take four (4) Liquid Soft-Gels one hour before activity. Do not take more than four (4) Liquid Soft-Gels in one day.

⚠️ Warnings & Precautions

Usage Warnings: Do not use if safety seal is broken. This product contains an ingredient that may affect blood sugar.

Check with your doctor before using this product and engaging in activity, if you are using medication or have any medical conditions, including heart disease or high/low blood pressure. Do not use if you may become pregnant, are pregnant or nursing.

Do not exceed recommended daily intake.

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

Contains: Dairy, Soy, Tree Nuts (Coconut, Palm Kernel)

🧪 Formulation Notes

BioPerine enhanced Steel-Libido Peak Testosterone is a powerful 2-in-1 formula designed to support sexual vitality and provide a peak-performance testosterone boost for men of all ages. This powerful male-enhancement formula combines traditional botanicals and targeted nutrients to boost physical performance and pleasure. Notes: This unique formula also features KSM-66, a highly concentrated Ashwagandha extract, which research suggests can help boost testosterone levels already within a normal range.

Studies also demonstrate a wide range of health benefits attributed to this form of Ashwagandha including its ability to support overall wellbeing, a healthy stress response, and physical performance. Use this product daily to help maintain an active sex life, or occasionally as needed to help maximize potential.

What makes us different: Liquid Soft-Gels - the nutrients in these easy-to-swallow Liquid Soft-Gels are released fast. Other forms of delivery can contain binders and fillers that may cause stomach upset and offer no nutritional value. Advanced Liquid Soft-Gels provide an optimum delivery system.

Quality Assurance - Irwin Naturals is committed to providing the highest quality products for your health. We employ compliance testing to ensure purity and potency.

KSM-66 Boost

Powerful 2-in-1 Formula for Men Peak Performance Enhancer and Testosterone Booster

No preservatives added.

Additional Information

Pass Quality Tested Guaranteed

Global Responsibility - Over the years we have donated to organizations that support the environment and the health of our children.

Store in a cool, dry place.

Questions: Contact Consumer Affairs 1-800-297-3273 - Weekdays 8:00 AM to 5:00 PM (PST) Questions@IwinNaturals.com 100+ Highly Specialized Products: www.IrwinNaturals.com

Product Details

UPC / SKU 7 10363 58600 3
DSLD Entry Date 2023-06-22
Product Type Botanical with Nutrients
Form Softgel Capsule
DSLD ID 292089
Data Updated 2026-04-11

Research Evidence

14 Research Sources
50 Avg Quality Score
8 Rct
4 Meta Analysis
2 Clinical Trial
B The Effect of Fenugreek in Type 2 Diabetes and Prediabetes: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Meta Analysis International journal of molecular sciences 2023
B A randomized controlled clinical trial evaluating the effect of Trigonella foenum-graecum (fenugreek) versus glibenclamide in patients with diabetes
Rct African health sciences 2019
C The effect of fenugreek seed supplementation on serum irisin levels, blood pressure, and liver and kidney function in patients with type 2 diabetes mellitus: A parallel randomized clinical trial
Rct Complementary therapies in medicine 2020
C Effect of saffron and fenugreek on lowering blood glucose: A systematic review with meta-analysis
Meta Analysis Phytotherapy research : PTR 2023
C Effect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysis
Meta Analysis Journal of ethnopharmacology 2016
C Effect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trials
Meta Analysis Phytotherapy research : PTR 2020
C Investigating the Effectiveness of Fenugreek on the Quantity of Breast Milk and the Level of Prolactin in Mothers of Preterm Newborns: A Randomized Controlled Clinical Trial
Rct Current drug research reviews 2025
C Clinical observation on trigonella foenum-graecum L. total saponins in combination with sulfonylureas in the treatment of type 2 diabetes mellitus
Rct Chinese journal of integrative medicine 2008
C Impact of Fenugreek Supplementation on Obesity and Hyperglycemia Among Diabetic Adults in Saudi Arabia
Clinical Trial ClinicalTrials.gov 2025
C Fenugreek bread: a treatment for diabetes mellitus
Rct Journal of medicinal food 2009
View all evidence for Fenugreek →

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