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Steel-Libido Pink For Women

Irwin Naturals
4.2
★ ★ ★ ★ ★
(326 ratings)
Theobromine 100 mg
Ashwagandha 62.5 mg
Theanine 50 mg
Eleuthero 100 mg
Product Image
Score64
A broad, purposeful vitality formula with strong ingredient variety, though standardization and interaction details need attention.
How scoring works
Quantity:60 Liquid(s) • (30 servings)
Goals:
Energy
Cognitive Support

Score 64

A broad, purposeful vitality formula with strong ingredient variety, though standardization and interaction details need attention.
How scoring works
$23.71($0.79 per serving)
iHerb
$ 23.71
Pure Formulas
$ 28.99
Vitacost
$ 28.99
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Analysis

Asian ginseng and maca provide the clearest energy and libido rationale. Damiana, schisandra, eleuthero, and ashwagandha add broader stress and vitality support.

Velvet bean and theobromine may feel stimulating, while theanine may soften that effect for some users. Extract marker details are incomplete, so potency cannot be compared confidently across products.

The liquid-softgel format is convenient and offers fair value for the breadth of ingredients. The complex formula is less suitable for users who want to test one active at a time.

Who is it for
  • Adult women seeking energy and libido support
  • Users comfortable with stimulating botanicals
  • People who prefer a broad vitality formula
Best for
  • Daytime vitality
  • Libido-oriented support
  • Stress and energy balance

Pros

  • Substantial Asian ginseng amount
  • Includes maca and several complementary botanicals
  • All active amounts are listed

Cons

  • Extract standardization is incomplete
  • Complex formula makes tolerance harder to trace
  • Inactive ingredients are not fully supplied

Warnings

  • Velvet bean can contain levodopa and may interact with Parkinson's medicines or MAO inhibitors
  • Ginseng and theobromine may cause insomnia or palpitations
  • Ashwagandha may affect thyroid function and warrants caution with thyroid medication

Nutrient quality

64 Moderate impact

Ginseng and several adaptogenic herbs provide a plausible energy-oriented base. Low doses, goal mismatch, and a crowded stimulant blend reduce quality.

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Ingredient transparency

81 Highest impact

Active names and doses are clearly disclosed. Non-active ingredients and complete usage directions remain missing.

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Customer satisfaction

55 Moderate impact

The supplied average rating is weak. No specific review comments were supplied, so repeated negative experiences cannot be assessed.

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Value for money

48 Lower impact

The broad botanical list provides some utility. Modest dosing and mixed aggregate satisfaction weaken competitiveness.

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Goals

Energy
Impact
High effect
A Goal FitC Strength of SupportB- CoverageB Formula Quality

Steel-Libido Pink For Women from Irwin Naturals covers metabolic or mitochondrial support, alertness or focus support, stress-resilience support, producing strong goal alignment.

Collection-specific evidence indicates limited dose adequacy and good form or disclosure quality, with the main limitation being variable evidence across the included actives.

Study evidence
Ashwagandha Supportive 9 studies
Eleuthero Disputed 3 studies
Theanine Not classified

No linked studies yet.

Theobromine Adverse 1 study
Cognitive Support
Impact
Moderate effect
C- Goal FitC- Strength of SupportC- CoverageC- Formula Quality
Ashwagandha · 62.5 mgTheanine · 50 mg

Steel-Libido Pink For Women includes theanine, Sensoril, and eleuthero for calm and stress resilience, but all three amounts are modest and the formula targets libido rather than cognition.

Customer feedback averages 4.20 from 326 reviews; The multi-ingredient label and possible sedative, stimulant, or medication interactions deserve review.

Study evidence
Eleuthero No effect 1 study
Theanine Supportive 25 studies

Ingredients

IngredientAmount per serving
Calories
20 Calorie(s)
Total Fat
1.5 Gram(s)
Total Carbohydrates
1 Gram(s)
Protein
1 Gram(s)
Asian Ginseng root extract
250 mg
Maca powder
200 mg
Damiana, Powder
150 mg
Schisandra powder
150 mg
Velvet Bean seed extract
150 mg
Eleuthero, Powder
100 mg
Theobromine
100 mg
Sensoril (Ashwagandha Leaf, Root Extract)
62.5 mg
L-Theanine
50 mg
Cayenne, Powder
27 mg
BioPerine Complex
3 mg
Women Women 18–50
Report overview
Theobromine · 100 mg OverallScore88
B Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

Steel-Libido Pink supplies 100 mg of standalone theobromine at $0.79 per serving, matching the preferred dose and favorable value bands. Its 4.20 average across 326 reviews suggests generally positive satisfaction, while an NSF company listing offers some quality context without proving certification of this exact SKU. Label cautions involving blood pressure or heart conditions, pregnancy, and a Prop 65 notice, along with titanium dioxide and added colors, make the safety and clean-label profile more guarded.

A+ Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyD+ Value

Steel-Libido Pink For Women provides 62.5 mg of clinically studied Sensoril extract at $0.79 per serving, with 4.20 from 326 supplied reviews. Ashwagandha may affect thyroid or hormone-related considerations, and the additional stimulant-style botanicals warrant medication and condition screening.

Theanine · 50 mg OverallScore74
A- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value

Steel-Libido Pink For Women provides 50 mg of clearly disclosed L-theanine, placing the dose in the rubric's mild-support tier. Customer satisfaction is favorable at 4.20 from 326 reviews, and Irwin Naturals publicly identifies its formulas as third-party quality tested. Ginseng, velvet bean, theobromine, and multiple botanicals can affect stimulation or medication response, making pregnancy and interaction review important.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Efficacy and Safety of Low-Dose Ashwagandha Supplementation on Exercise Endurance: A Randomized, Placebo-Controlled, Double-Blind, Clinical Trial.
    Prajapati H; Satia M; Shah D; Basera I; Shah T · Phytotherapy research : PTR · 2026
    Randomized trialEnergy forAshwagandha
  2. An Examination into the Anti-stress and Anti-fatigue Effects of an Ashwagandha Extract (Ashwa.30™) in Stressed Adults: A Randomised, Double-Blind, Placebo-controlled Trial.
    Lopresti AL; Smith SJ; Bethapudi B; R AA; Mundkinajeddu D; D'Souza P; Lakshmikanthan S · Advances in therapy · 2026
    Randomized trial60 participantsEnergy forAshwagandha
  3. Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood.
    Leonard M; Dickerson B; Estes L; Gonzalez DE; Jenkins V; Johnson S; Xing D; Yoo C; Ko J; Purpura M; Jäger R; Faries M; Kephart W; Sowinski R; Rasmussen CJ; Kreider RB · Nutrients · 2024
    Randomized trial59 participantsEnergy forAshwagandha
  4. Randomized controlled trial of Siberian ginseng for chronic fatigue.
    Hartz AJ; Bentler S; Noyes R; Hoehns J; Logemann C; Sinift S; Butani Y; Wang W; Brake K; Ernst M; Kautzman H · Psychological medicine · 2004
    Randomized trial96 participantsEnergy forEleuthero
  5. Evidence-based efficacy of adaptogens in fatigue, and molecular mechanisms related to their stress-protective activity.
    Panossian A; Wikman G · Current clinical pharmacology · 2009
    Narrative reviewEnergy forEleuthero
  6. Sleep symptoms associated with intake of specific dietary nutrients.
    Grandner MA; Jackson N; Gerstner JR; Knutson KL · Journal of sleep research · 2014
    Cross-sectional study4,552 participantsEnergy forTheobromine
  7. No benefit adding eleutherococcus senticosus to stress management training in stress-related fatigue/weakness, impaired work or concentration, a randomized controlled study.
    Schaffler K; Wolf OT; Burkart M · Pharmacopsychiatry · 2014
    Randomized trial144 participantsCognitive Support forEleuthero
  8. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
    Foxe JJ; Morie KP; Laud PJ; Rowson MJ; de Bruin EA; Kelly SP · Neuropharmacology · 2012
    Randomized trial27 participantsCognitive Support forTheanine
  9. Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Payne ER; Aceves-Martins M; Dubost J; Greyling A; de Roos B · Nutrition reviews · 2025
    Meta-analysis50 studies pooledCognitive Support forTheanine
  10. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
    Hidese S; Ogawa S; Ota M; Ishida I; Yasukawa Z; Ozeki M; Kunugi H · Nutrients · 2020
    Randomized trial30 participantsCognitive Support forTheanine
  11. Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study.
    Dassanayake TL; Wijesundara D; Kahathuduwa CN; Weerasinghe VS · Nutritional neuroscience · 2023
    Randomized trial32 participantsCognitive Support forTheanine
  12. Acute effects of theanine, caffeine and theanine-caffeine combination on attention.
    Kahathuduwa CN; Dassanayake TL; Amarakoon AMT; Weerasinghe VS · Nutritional neuroscience · 2018
    Clinical trial20 participantsCognitive Support forTheanine
  13. Effects of multi-herb and ashwagandha root formulas on stress modulation: a randomized, double-blind, placebo-controlled clinical study.
    McKinney E; Stewart J; Kewalramani R; Singh S · Trials · 2026
    Randomized trial186 participantsEnergy forAshwagandha
  14. Enhancing healthspan with Ashwagandha (Withania somnifera): a comprehensive review of its multifaceted geroprotective benefits.
    Vittal M; Vinciguerra M · Biogerontology · 2025
    Narrative reviewEnergy forAshwagandha
  15. Safety and Efficacy of Ashwagandha Root Extract on Cognition, Energy and Mood Problems in Adults: Prospective, Randomized, Placebo-Controlled Study.
    Kale S; Lopresti A; Suri R; Garg N; Langade D · Journal of psychoactive drugs · 2026
    Randomized trial120 participantsEnergy forAshwagandha
  16. The effect of eight weeks of supplementation with Eleutherococcus senticosus on endurance capacity and metabolism in human
    J Kuo, K W Chen, I S Cheng, P H Tsai, Y J Lu, N Y Lee · Chinese Journal of Physiology · 2010
    Randomized trial9 participantsEnergy forEleuthero