$19.00 $0.31 per serving
Product analysis
Cortrex supplies vitamins involved in normal energy use and may help when low nutrient intake contributes to tiredness. It also contains bovine adrenal material, which matters for anyone avoiding animal ingredients.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality54
Vitamin B5 and thiamin provide the clearest favorable form choices. The quality of the other ingredients remains uncertain, and licorice lacks a specified preparation.
Ingredient Transparency95
All ingredient amounts and nearly all forms are disclosed. Licorice preparation details are omitted, and the separate adrenal declarations do not establish a single combined amount.
Value For Money37
Vitamin B5 is expensive for the amount supplied, while thiamin is also less competitive on value. Value for the remaining nutrients is uncertain.
Customer Satisfaction81
Customer ratings are very positive. Hundreds of responses provide a useful view of satisfaction, without demonstrating improved energy.
Product Focus63
The vitamins mainly support normal energy-related nutrition when intake is low. The formula does not establish stimulant-like effects or extra energy from high amounts.
- Format
Capsule - Container
- 60 Capsule(s)
- Per serving
- $0.31
- Customer rating
- 4.7 · 966 ratings
Goals
Impact
Moderate effect
Vitamin B5 · 50 mgRiboflavin · 5 mgThiamin · 10 mg
Vitamin B5 Not classified
No linked studies yet.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Ascorbic Acid) | 50 mg | |
Thiamine (Thiamine Hydrochloride) | 10 mg | |
Riboflavin (Riboflavin 5'-Phosphate Sodium) | 5 mg | |
Vitamin B6 (Pyridoxal 5-Phosphate) | 5 mg | |
Pantothenic Acid (Calcium Pantothenate) | 50 mg | |
Zinc (TRAACS Zinc Bisglycinate Chelate) | 10 mg | |
Adrenal (Bovine) | 125 mg | |
Licorice | 75 mg | |
Adrenal Cortex (Bovine) | 30 mg |
Vitamin B5 (Calcium Pantothenate) · 50 mg OverallScore70
50 mg of B5 per serving comes at a high cost for the amount provided. The label names Calcium Pantothenate as the source.
How this ingredient is rated
Active Ingredient Quality & Bioavailability90
Calcium Pantothenate is a stable, well-absorbed form of B5.
Vitamin B5 Chemical Form
Calcium Pantothenate is a stable, well-absorbed form of B5.
Dose, Safety & Label Transparency76
A serving provides 50 mg of B5 for general maintenance. The label gives the B5 amount and names Calcium Pantothenate as its source.
Dosage Potency and Efficacy
A serving provides 50 mg of B5 for general maintenance.
Label Transparency & Source Clarity
The label gives the B5 amount and names Calcium Pantothenate as its source.
Value20
The cost is high for the amount of B5 provided.
Price per 500mg Vitamin B5
The cost is high for the amount of B5 provided.
Thiamin (Thiamine Hydrochloride) · 10 mg OverallScore65
10 mg of thiamin per serving comes at a high cost for the amount. It uses thiamine hydrochloride.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
The source is thiamine hydrochloride. The listed ingredients do not include the specified unwanted sweeteners or colors.
Thiamin Chemical Form
The source is thiamine hydrochloride, a standard water-soluble form.
Excipient Purity
The listed ingredients do not include the specified unwanted sweeteners or colors.
Dose, Safety & Label Transparency72
The label gives both the thiamin amount and source: 10 mg per serving.
Thiamin Dosage Potency
It provides 10 mg of thiamin per serving.
Label Transparency & Proprietary Blends
The label states the thiamin amount and source.
Value40
The cost is high for the amount of thiamin provided.
Price per Declared Dose
The cost is high for the amount of thiamin provided.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
- Vitamin B status in patients with chronic fatigue syndrome.
- B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
- Metabolic features of chronic fatigue syndrome.
- Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
- Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
- Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflammatory bowel disease.
- Dietary reference values for thiamin.
- Effects of thiamine supplementation on exercise-induced fatigue.
- Long-term maintenance treatment with 300 mg thiamine for fatigue in patients with inflammatory bowel disease: results from an open-label extension of the TARIF study.