🟢 100/100

This product looks safe

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

Product Label

📸

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Label Data

1 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
25% Evidence Coverage

Supplement Facts — Evidence Check

📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews
This product: 400mg
Tribulus terrestris
150 mg
📊 Market median: 500.0mg (357 products) 📚 1 studies — no high-quality reviews
This product: 100mg
DIM
100 mg
📊 Market median: 200.0mg (3 products) 📚 10 studies (Tier A: 1, B: 3)
This product: 100mg

Other Ingredients

Gelatin Dicalcium Phosphate Magnesium Stearate Silica Titanium Dioxide FD&C Red #40 FD&C Blue #1 FD&C Yellow #6

Label Claims — Verification

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

Target Groups

Adult Male (18-50 Years)

Product Information

📋 Directions for Use

Directions Take 1 capsule daily with breakfast.

It is so powerful that you only need one small capsule per day to experience its full benefits.

⚠️ Warnings & Precautions

Keep out of reach of children.

For adult use only.

Allergen Warning: Manufactured by equipment which processes products containing milk, eggs, soybeans, wheat, shellfish, fish oil, tree nuts, and peanut flavor.

Precautions: Use only as directed.

Consult a healthcare professional before use if you are pregnant or nursing, have a medical condition, or use prescription medications.

Ask your doctor if your heart is strong enough for exercise and sex.

🧪 Formulation Notes

Alpha King, the strongest male vitality supplement to date from Force Factor, delivers an enviable boost of free testosterone when paired with the resistance training that helps men build lean muscle.

An elite new ingredient Alpha King's AlphaFen is a new generation of fenugreek seed extract, with enhanced bioavailability to help boost free testosterone to elite levels.

The secret to AlphaFen's success resides in its high concentration of sapogenins, a constituent compound fenugreek that is believed to block the enzyme responsible for converting testosterone to estrogen. Maximizing bioavailable sapogenins in the blood is the quickest way to ensure results. Alpha King also includes traditional male sexual health ingredients, including DIM (diindolylmethane), tribulus terrestris, and black maca.

Overall, Alpha King is a formula you can literally feel working, helping you ascend to the crown of manliness.

Additional Information

Unleash your potential

The same characteristics attributed to kings ultimately define all successful men: power and confidence, relentless drive and ambition, and the desire to achieve greatness and leave a lasting legacy. Never before have these qualities been more attainable.

More free testosterone leads to a heightened sexual appetite and noticeable increase in libido. It means more energy and better physical performance. It amplifies passion and virility, and it promises to give you the competitive edge you need to rise to the pinnacle of masculinity. Bottom line, Alpha King's premium formula helps you experience fully what it means to be a man, and it endows you with the ability to truly unleash your potential.

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Premier free testosterone booster Build lean muscle Boost sex drive & libido Improve performance Superior bioavailability

Store in a cool, dry place. Protect from heat, light, and moisture.

Speak with one of our experts 1-800-938-3701 In conjunction with a resistance training program.

17-1

Proudly manufactured in the U.S. from foreign and domestic ingredients.

Product Details

UPC / SKU 8 18594 01371 5
DSLD Entry Date 2019-06-24
Product Type Other Combinations
Form Capsule
Brand Force Factor
DSLD ID 193174
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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