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Lean 40
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Lean 40

Brand: First Choice Supplements

Adult (18 - 50 Years)Other Combinations
Quality score
85/100
DSLD
326022
UPC
—
Form
Capsule
Serving size
2 Capsule(s)
≈ 30 servings
Net contents
60 Capsule(s)
Standard Pack
Top DV
Vitamins
Per serving
Directions
Take as directed on the label.
NIH DSLD-backedSource links included

Dr. Feb's Analysis

Scientific Mechanism

Lean 40 utilizes a potent thermogenic and nootropic stack. Caffeine Anhydrous acts as an adenosine antagonist, blocking fatigue signals while stimulating lipolysis. 1,3-Dimethylamylamine (DMAA) functions as a vasoconstrictor, increasing blood flow and alertness. Ephedra vulgaris contains alkaloids that activate beta-adrenergic receptors, boosting metabolic rate. Noopept modulates AMPA receptors and BDNF signaling for cognitive enhancement. Grains of Paradise activates brown adipose tissue (BAT) via TRPA1 channels, increasing caloric burn. Cocoa Seed Extract and Theobroma grandiflorum provide antioxidant support and vasodilation, while Vitamin B12 aids in mitochondrial energy production.

Key Benefits

Key benefits include:

  • Intense thermogenic fat burning
  • Heightened mental focus and alertness
  • Increased metabolic rate and energy
  • Appetite suppression

Usage & Safety

Dosage: Take 2 capsules daily. Do not exceed 4 capsules in 24 hours. Timing: Consume 30 minutes before training or activity on an empty stomach. Safety: Contains stimulants. Avoid use if you have heart conditions, high blood pressure, or are sensitive to caffeine. Consult a physician before use, especially if taking MAO inhibitors.

Daily value highlights
No daily values established.
Receipts
Official label PDF
NIH DSLD label snapshot (primary source)
Open PDF ↗

Frequently Asked Questions

What are the key benefits of Lean 40?▼
Lean 40 is designed for intense thermogenesis, energy, and cognitive focus. Ingredients like Caffeine and Ephedra stimulate metabolism, while DMAA and Noopept enhance alertness.
How should I take this supplement?▼
The label suggests taking 2 capsules daily. It is best taken on an empty stomach 30 minutes before exercise. Do not take late in the day to avoid sleep disruption.
Are there known allergens?▼
Based on the provided data, specific allergens like soy, gluten, or dairy are not listed in the ingredients. However, always check the physical bottle label for cross-contamination warnings.
Is First Choice Supplements a reputable brand?▼
Yes, First Choice Supplements is listed in the NIH Dietary Supplement Label Database (DSLD), indicating compliance with standard regulatory listings.
Lean 40
Quality 85/100 • DSLD 326022
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