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Steel-Libido Peak Testosterone

Irwin Naturals
4.6
★ ★ ★ ★ ★
(268 ratings)
Ashwagandha 675 mg
Fenugreek 200 mg
Protein 2 Gram(s)
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Score89

A premium liquid softgel formula using branded KSM-66 ashwagandha for superior absorption and vitality support.

How scoring works
Quantity:75 Liquid(s) • (18 servings)
Goals:
Brain Health
Mental Focus
Stress Relief
General Health
Testosterone Support
Mood Support
Energy
Cognitive Support

Score 89

A premium liquid softgel formula using branded KSM-66 ashwagandha for superior absorption and vitality support.

How scoring works
$24.99($1.38 per serving)
iHerb
$ 24.99
Pure Formulas
$ 24.99
Vitacost
$ 24.99
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Analysis

This product features 675 mg of the branded KSM-66 ashwagandha, which is one of the most researched and potent extracts available. It is delivered in a liquid softgel with MCT oil and BioPerine, which helps the body absorb the fat-soluble botanical compounds more efficiently. It also includes other traditional herbs like maca and fenugreek to support overall vitality and drive.

The liquid softgel format makes it easier to digest than traditional tablets. This is a great choice for active men who want a high-performance supplement that supports recovery and mental focus under pressure.

Pros

  • Branded KSM-66 extract
  • Enhanced absorption with BioPerine
  • Liquid softgel delivery
  • Supports performance and recovery

Cons

  • Large liquid softgel size
  • Relatively low serving count
  • Contains multiple complex ingredients

Warnings

  • Contains stimulants like Asian Ginseng
  • Monitor heart rate and energy
  • Not for use late in the evening

Nutrient quality

93 Highest impact

Branded KSM-66 ashwagandha provides a high-quality, standardized source of withanolides at a robust dosage. Inclusion of BioPerine and MCT oil significantly aids the absorption of the fat-soluble botanical markers.

Ingredient transparency

99 Highest impact

Labeling provides clear amounts for all active ingredients including the branded ashwagandha extract. Naming is specific and the serving directions are easy to follow for consistent daily use.

Customer satisfaction

91 Highest impact

Strong ratings from users suggest the formula is well-regarded for its intended purpose in vitality and energy. The feedback aligns well with the goals of energy and physical performance support.

Value for money

71 High impact

Premium cost per serving is a significant factor compared to more basic options in the category. Use of branded KSM-66 ashwagandha and specialized liquid softgels provides some justification for the cost.

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Goals

Stress Relief
Impact
Highest effect
A+ Goal FitA+ Strength of SupportB- CoverageA- Formula Quality

Branded KSM-66 ashwagandha at 675mg provides an intensive dose for cortisol regulation and adrenal support. This standardized extract is one of the most reliable forms available for managing stress resilience.

While the product targets performance goals, the ashwagandha concentration is exceptionally well-suited for stress-relief objectives. BioPerine and the liquid softgel format maximize the delivery of this potent adaptogen.

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Brain Health
Impact
Highest effect
A Goal FitA+ Strength of SupportB- CoverageA+ Formula Quality

KSM-66 Ashwagandha extract supports mental resilience and cognitive focus by managing the mental stress response.

This high-dose adaptogen, combined with Maca and Fenugreek, appears well aligned with goals centered on cognitive endurance and managing physiological stress markers.

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Mental Focus
Impact
Highest effect
A- Goal FitA+ Strength of SupportB+ CoverageA Formula Quality

KSM-66 Ashwagandha is provided at a robust 675mg dose to support stress resilience and mental sharpness. This adaptogen is combined with Maca and Ginseng to assist with physical and mental stamina during demanding tasks.

The ingredients appear well aligned for users seeking to manage stress-related focus issues. High potency for the primary adaptogen ensures that the supplement provide significant support for cognitive performance and clarity.

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General Health
Impact
Highest effect
A Goal FitA+ Strength of SupportB- CoverageA Formula Quality

Branded KSM-66 ashwagandha root extract, combined with MCT oil and other botanicals, provides adaptogenic support for systemic resilience and hormonal balance. Ashwagandha is a core adaptogen recognized for its role in supporting the body's natural response to daily stressors and promoting vitality.

The 675 mg dose of KSM-66 is highly effective and sits at the upper end of clinical targets for stress and energy support. While primarily aimed at performance, the inclusion of foundational adaptogens and healthy fats contributes meaningfully to general health maintenance.

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Testosterone Support
Impact
Highest effect
A Goal FitA- Strength of SupportB+ CoverageA Formula Quality

Ashwagandha (KSM-66) and Fenugreek extracts are the primary drivers in this liquid softgel formulation. BioPerine and MCT oil are included to facilitate the absorption of these fat-soluble botanical compounds.

Endocrine health appears well-supported by the high clinical dosage of branded Ashwagandha. While other botanicals are present, the potency of the adaptogenic component provides the strongest alignment with the goal.

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Mood Support
Impact
Highest effect
A- Goal FitA+ Strength of SupportB- CoverageA- Formula Quality

This formula provides 675mg of KSM-66 ashwagandha extract, which is an adaptogen with strong clinical backing for supporting a healthy stress response. By managing cortisol levels, it may contribute to an improved mental outlook and emotional resilience in active individuals.

Secondary ingredients like maca and fenugreek support overall vitality, while the inclusion of BioPerine ensures the botanical components are well-absorbed. This concentrated liquid softgel is designed to support both hormonal health and emotional well-being.

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Ingredients

IngredientAmount per serving
Calories
40 Calorie(s)
Total Fat
2.5 Gram(s)
Total Carbohydrates
2 Gram(s)
Protein
2 Gram(s)
Medium Chain Triglyceride Oil
2100 mg
KSM-66 (Ashwagandha Root Extract)
 675 mg
Maca powder
240 mg
Fenugreek Seed Extract
200 mg
Epimedium Aerial Extract (Epimedium sagittatum Aerial Extract)
 150 mg
Muira Puama bark extract
100 mg
Asian Ginseng Root Extract
80 mg
Cayenne, Powder
60 mg
Beta-Sitosterol
33 mg
BioPerine Complex
6 mg
Men 18–50 Women
Report overview
Ashwagandha (Ashwagandha Root Extract) · 675 mg OverallScore76
A+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value
This high-potency testosterone support formula features a robust dose of KSM-66 ashwagandha combined with an absorption enhancer. It is designed for active individuals looking for both performance and hormonal support in a well-absorbed format.
View ingredientView products
Fenugreek · 200 mg OverallScore51
C+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyF Value
Steel-Libido uses a concentrated KSM-66 ashwagandha alongside fenugreek in a high-absorption softgel format. It is a premium multi-ingredient option for those who want a formula designed for better nutrient uptake.
View ingredientView products
92 Value

Fenugreek Extract 300 mg

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TEST

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TESTOFX

ALLMAX
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Ferodrox

Kaged Muscle
4.5
★★★★★
(754 ratings)
Kaged Muscle uses 600 mg of KSM-66 ashwagandha and LJ100 Eurycoma longifolia extract to support hormonal balance and vitality. Adding PrimaVie shilajit and OptiZinc creates a high-tier strategy for maintaining metabolic health and energy in active individuals.
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96 Performance

Ashwagandha KSM-66 600 mg

NutraBio
4.7
★★★★★
(4430 ratings)
NutraBio provides a robust 600 mg clinical dose of branded KSM-66 ashwagandha, which is standardized for consistent activity. This higher dosage is excellent for individuals seeking top-tier support for cortisol management and cognitive endurance.
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90 Budget

Alpha

JYM Supplement Science
4.2
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(3017 ratings)
JYM Supplement Science combines 500 mg of fenugreek and ashwagandha extracts with tongkat ali and DIM to support hormonal health. This complex botanical profile offers robust dosages for physical stamina and recovery at a more accessible cost per serving.
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96 Budget

Fenugreek Extract 500 mg

Swanson
4.7
★★★★★
(379 ratings)
Swanson provides a standardized 500 mg dose of fenugreek seed extract, ensuring a consistent delivery of active saponins. This streamlined formula is an efficient and cost-effective way to support metabolic health and vitality across 90 servings.
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96 Budget

Ashwagandha Extract 450 mg

Swanson
4.7
★★★★★
(3687 ratings)
Swanson delivers 450 mg of ashwagandha root extract standardized for withanolides to support resilience and hormonal balance. This is a very budget-friendly option for individuals seeking a high-quality, clinical-strength adaptogen for daily maintenance.
Other sellers (2)
92 Value

Fenugreek Extract 300 mg

Swanson
4.6
★★★★★
(172 ratings)
Swanson utilizes the patented Testofen extract, standardized for fenusides, to support muscle health and libido. This concentrated botanical preparation offers research-backed potency for daily vitality goals in a very focused and efficient format.
Other sellers (0)
96 Value

Organic Ashwagandha

Himalaya
4.6
★★★★★
(10402 ratings)
Himalaya combines ashwagandha root powder, extract, and supercritical CO2 extract to provide a 670 mg full-spectrum adaptogenic dose. This organic 90-serving bottle offers premium botanical markers for long-term health and stress modulation at a great value.
Other sellers (1)
90 Value

TEST

Biochem
4.5
★★★★★
(127 ratings)
Biochem pairs 300 mg of fenugreek extract with PrimaVie shilajit, boron, and vitamin D to support healthy testosterone and systemic wellness. This synergistic blend of minerals and botanicals provides targeted endocrine support at an accessible price point.
Other sellers (0)
95 Performance

TESTOFX

ALLMAX
4.3
★★★★★
(636 ratings)
ALLMAX pairs Torodex fenugreek extract with Sensoril ashwagandha and 240 mg of Tribulus to more effectively address stress resilience and hormonal regulation. The inclusion of resveratrol and DIM provides multi-pathway support for metabolism and cellular defense.
Other sellers (3)
95 Performance

Ferodrox

Kaged Muscle
4.5
★★★★★
(754 ratings)
Kaged Muscle uses 600 mg of KSM-66 ashwagandha and LJ100 Eurycoma longifolia extract to support hormonal balance and vitality. Adding PrimaVie shilajit and OptiZinc creates a high-tier strategy for maintaining metabolic health and energy in active individuals.
Other sellers (2)
96 Performance

Ashwagandha KSM-66 600 mg

NutraBio
4.7
★★★★★
(4430 ratings)
NutraBio provides a robust 600 mg clinical dose of branded KSM-66 ashwagandha, which is standardized for consistent activity. This higher dosage is excellent for individuals seeking top-tier support for cortisol management and cognitive endurance.
Other sellers (4)
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