E.S.P. Pre-Workout Blue Raspberry
Goals
$34.99 $1.16 per serving
Product analysis
E.S.P. Pre-Workout Blue Raspberry contains ingredients intended to support alertness and exercise, alongside B vitamins that support normal energy use. Undisclosed individual stimulant amounts make it difficult to judge what a serving will deliver.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality20
Ingredient forms are not identified, so their quality is difficult to compare. The blend also lacks an individual breakdown, leaving the nature of its contents unclear.
Ingredient Transparency38
Label detail is limited, with some amounts and all ingredient forms unstated. The blend lacks an individual breakdown, making serving comparisons difficult.
Value For Money38
Potassium appears reasonably priced, while magnesium and niacin offer less value. Cost comparisons for the remaining ingredients are uncertain, so the serving price gives an incomplete picture.
Customer Satisfaction69
Customer ratings are generally positive. The relatively small review pool limits how confidently satisfaction can be generalized.
Product Focus34
The formula is aimed at pre-workout energy and alertness. Unresolved individual amounts limit confidence in how well it fits that purpose.
- Format
Powder - Container
- 300 Gram(s)
- Per serving
- $1.16
- Customer rating
- 4.6 · 106 ratings
Goals
Impact
Moderate effect
Magnesium · 200 mgVitamin B12 · 500 mcgPotassium · 200 mg
Impact
Situational effect
Magnesium · 200 mgVitamin B12 · 500 mcgVitamin B6 · 4.23 mg
Impact
Lower effect
Magnesium · 200 mgVitamin B12 · 500 mcgVitamin B6 · 4.23 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 8 Calorie(s) | |
Total Fat | 0 Gram(s) | |
Total Carbohydrates | 2 Gram(s) | |
Total Protein | 0 Gram(s) | |
Calcium Gluconate | 200 mg | |
Magnesium Gluconate | 200 mg | |
Potassium Gluconate | 200 mg | |
Sodium | 30 mg | |
Vitamin B3 | 20 mg | |
Vitamin B6 | 4.23 mg | |
Vitamin B12 | 500 mcg | |
Dual Support Anti-Aromatase Complex | 0 NP |
Magnesium · 200 mg OverallScore57
A serving supplies 50 mg of magnesium at a higher whole-product cost per serving, a small magnesium contribution. The magnesium source is Magnesium Gluconate. The magnesium amount is clearly stated.
How this ingredient is rated
Active Ingredient Quality & Bioavailability49
The magnesium source is Magnesium Gluconate. No specific branded or fully reacted chelation claim is provided.
Magnesium Form & Absorption Potential
The magnesium source is Magnesium Gluconate.
Patented Materials & Chelation Quality
No specific branded or fully reacted chelation claim is provided.
Dose, Safety & Label Transparency79
A serving provides 50 mg of magnesium, a small contribution. The serving has 50 mg of calcium alongside magnesium.
Elemental Yield Transparency
The label states 50 mg of elemental magnesium per serving.
Therapeutic Dosage Alignment
A serving provides 50 mg of magnesium, a small contribution.
Synergistic Formulation Logic
The serving has 50 mg of calcium alongside magnesium.
Value30
The whole-product cost per serving is higher; the magnesium portion has no separate price.
Price Per Elemental Quality
The whole-product cost per serving is higher; the magnesium portion has no separate price.
Potassium · 200 mg OverallScore70
Niacin · 20 mg OverallScore33
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial.
- Total magnesium intake and risk of frailty in older women.
- Red blood cell magnesium and chronic fatigue syndrome.
- Exercise, magnesium and immune function.
- [Efficacy of potassium N-acetylaminosuccinate (Cogitum) in the treatment of asthenic syndrome: results of double-blind placebo-controlled trial].
- Human resting energy expenditure in relation to dietary potassium.
- A new perspective on vitamin B12 deficiency in rheumatology: a case-based review.
- Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.
- Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.
- Cobalamin deficiency: clinical picture and radiological findings.
- Vitamin B12 Deficiency: Common Questions and Answers.
- Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
- Effects of magnesium supplementation on improving hyperglycemia, hypercholesterolemia, and hypertension in type 2 diabetes: A pooled analysis of 24 randomized controlled trials.
- The effect of lowering blood pressure by magnesium supplementation in diabetic hypertensive adults with low serum magnesium levels: a randomized, double-blind, placebo-controlled clinical trial.
- Positive effects of magnesium supplementation in metabolic syndrome.
- Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
- Differential effect of two nicotinic acid preparations on low-density lipoprotein subclass distribution in patients classified as low-density lipoprotein pattern A, B, or I.
- The ARBITER 6-HALTS Trial (Arterial Biology for the Investigation of the Treatment Effects of Reducing Cholesterol 6-HDL and LDL Treatment Strategies in Atherosclerosis): final results and the impact of medication adherence, dose, and treatment duration.
- The effects of extended-release niacin on carotid intimal media thickness, endothelial function and inflammatory markers in patients with the metabolic syndrome.
- Effect of niacin therapy on cardiovascular outcomes in patients with coronary artery disease.