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Steel-Libido RED

Irwin Naturals
4.4
★ ★ ★ ★ ★
(1252 ratings)
Theobromine 100 mg
Theanine 100 mg
Citrulline 1500 mg
Ginkgo
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Score93

A bulk-value supply of the Steel-Libido RED formula for healthy circulation and mental drive.

How scoring works
Quantity:150 Softgel(s) • (37 servings)
Goals:
Energy
Mental Focus
Productivity Boost
Mood Support
Cardiovascular Support
Cognitive Support
Stress Relief
Brain Health

Score 93

A bulk-value supply of the Steel-Libido RED formula for healthy circulation and mental drive.

How scoring works
$44.99($1.21 per serving)
iHerb
$ 44.99
Vitacost
$ 44.99
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Analysis

Built around 1500mg of L-citrulline, this formula supports the body's natural production of nitric oxide, which is vital for healthy blood flow. It also includes velvet bean and ginseng to support mental energy and drive.

The addition of theobromine and theanine provides a balanced mental boost without the crash of heavy stimulants. It is a perfect fit for men looking for a large supply of a high-quality, circulation-focused vitality supplement.

Pros

  • Best value in the 150-count size
  • Strong 1500mg citrulline serving
  • Includes ginkgo for vascular support
  • Adds Asian ginseng for energy

Cons

  • High daily pill count (4 softgels)
  • Contains fish oil and soy allergens

Warnings

  • Consult a professional if you are taking heart medications

Nutrient quality

92 Highest impact

Utilization of meaningful doses of l-citrulline and ginkgo provides robust support for vascular and cognitive drive. Selection of synergistic botanicals like ginseng enhances the overall vitality profile of the formulation.

Ingredient transparency

100 Highest impact

Milligram amounts for core metabolic and vitality ingredients are clearly disclosed for high clarity. Full transparency regarding the concentrations of specialized extracts ensures accurate professional evaluation of the formula's potency.

Customer satisfaction

93 Highest impact

Average ratings are strong and supported by a very large volume of verified user reviews. Feedback suggests that the blend is particularly effective for those seeking robust support for mental clarity and physical vitality.

Value for money

86 Highest impact

Fair pricing for a comprehensive vitality formula with multiple standardized extracts offers good value. It remains a competitive choice for individuals seeking a broad-spectrum approach to cognitive energy and cardiovascular health.

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Goals

Impact
Highest effect
A+ Goal FitA Strength of SupportA+ CoverageA+ Formula Quality

L-citrulline and ginkgo extract contribute to the vascular pathways that support nutrient delivery and physical stamina. Theobromine and L-theanine further support mental focus and cognitive endurance without the jitters associated with stronger stimulants.

Dosing levels appear well aligned with the needs of active individuals looking for consistent daily energy. The inclusion of concentrated extracts and absorption enhancers ensures that the active nutrients are effectively utilized by the body.

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Impact
Highest effect
A Goal FitA- Strength of SupportA CoverageA+ Formula Quality

Ginkgo biloba, L-Theanine, and Theobromine are delivered in a standardized 120mg/100mg/100mg dose to support circulation, alertness, and focus. This combination is paired with L-Citrulline and Ginseng to assist with sustained mental and physical performance.

The ingredients appear well aligned for users seeking comprehensive support for cognitive energy. This larger value pack ensures consistent use of multiple synergistic nootropics for sustaining focus during demanding tasks.

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Impact
Highest effect
B+ Goal FitA- Strength of SupportA- CoverageA Formula Quality

This formula utilize ginkgo extract, theobromine, and l-theanine alongside l-citrulline to support brain circulation and mental focus. These active constituents work together to improve cognitive clarity and information processing during periods of mental workload.

The formulation appears well aligned with the goal of enhancing mental performance and energy. The large dose of citrulline and botanical extracts ensures that the formula provides robust support for focus.

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Impact
Highest effect
B Goal FitB+ Strength of SupportB+ CoverageA- Formula Quality

This formula utilizes L-theanine and ginkgo extract to support a balance between focus and calm, which may contribute to a stable emotional state. By supporting cerebral blood flow and neurotransmitter regulation, these ingredients assist in maintaining mental clarity under pressure.

The 100mg dose of L-theanine is well-aligned with goals for reducing acute stress without causing drowsiness. This softgel option is designed for efficient absorption and includes a complex of revitalizing botanicals and BioPerine.

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Impact
Highest effect
A- Goal FitB Strength of SupportB CoverageA- Formula Quality

Provision of L-citrulline and theobromine supports cardiovascular health through improved endothelial function and vasodilation. This vitality formula appears well aligned with maintenance goals for blood flow.

The 1,500 mg dose of citrulline and 100 mg of theobromine are meaningfully dosed for daily wellness. BioPerine inclusion may contribute to the overall bioavailability of the botanical complex.

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Impact
Highest effect
B+ Goal FitB- Strength of SupportA- CoverageA- Formula Quality

Ginkgo biloba and l-theanine provide a dual-pathway approach to cognitive support by addressing both cerebral circulation and mental calmness. Theobromine and l-citrulline may contribute to blood flow, which is a key physiological factor in maintaining mental clarity.

Velvet bean extract and asian ginseng root extract further align with the goal of supporting dopamine pathways and overall vitality. The ginkgo extract's lack of standardization markers limits the ability to verify its specific potency compared to clinical research.

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Ingredients

IngredientAmount per serving
Calories
40 Calorie(s)
Total Fat
2 Gram(s)
Total Carbohydrates
1 Gram(s)
Protein
4 Gram(s)
L-Citrulline
1500 mg
Medium Chain Triglyceride Oil
1000 mg
Pumpkin Oil
1000 mg
Velvet Bean extract
400 mg
Ginkgo extract
120 mg
L-Theanine
100 mg
Theobromine
100 mg
Asian Ginseng extract
80 mg
Cayenne powder
60 mg
Superoxide Dismutase
50 mg
BioPerine Complex
6 mg
Men 18–50 Women
Report overview
Theobromine · 100 mg OverallScore88
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyC Value
This larger value pack offers a standardized 100mg dose of theobromine for improved circulation and mental clarity. It is an ideal option for those who have found the formula effective and wish to purchase in bulk for better efficiency.
Theanine · 100 mg OverallScore82
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value
This mens vitality formula includes L-Theanine as a calming balancer to focus and circulation-promoting herbs. It is designed for active men who want a comprehensive health and performance supplement.
Citrulline · 1500 mg OverallScore69
A- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value
This larger bottle of Steel-Libido RED offers a better bulk value for the same circulatory support formula. It remains a solid option for general blood flow maintenance.
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