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Compound Deep-Dive

Tier 4: PeptideA powerful tool for focus and wakefulness, but its long half-life and prescription status require careful management.

Modafinil

ProvigilAlertecModavigil

Potent focus, high risk profile

Hype Risk

4/10

Noticeability

9/10

Evidence Tier

Strong

Cost / Month

~$45

Prescription required

What it's actually good for

Focus

Research Supported

Significantly enhances executive function, fluid intelligence, and attention span.

Energy

Research Supported

Highly effective at eliminating perceived fatigue and maintaining alertness during sleep deprivation.

Sleep

Not Supported

Directly interferes with sleep onset and quality if taken late in the day.

Muscle: neutralRecovery: neutralLongevity: neutralMood: neutralImmunity: neutral

How it works

Modafinil is a potent eugeroic agent with robust evidence for promoting wakefulness and reducing fatigue. Extensive clinical research also supports its efficacy in improving executive function and attention in healthy, non-sleep-deprived adults.

Increases extracellular dopamine by inhibiting reuptake and modulates hypothalamic orexin and histamine levels to promote alertness.

Safety

  • May significantly reduce the effectiveness of hormonal contraceptives.
  • Risk of rare but life-threatening skin reactions like Stevens-Johnson Syndrome.
  • Can cause significant insomnia, anxiety, and elevated heart rate.

The full StackRoast report adds

  • The exact dose, timing, and effective range to actually run it at
  • Where people go wrong with it — the dose-creep and timing traps
  • What Modafinil clashes with or duplicates in your stack
Roast My Stack →

Community Reality Check

Distilled from 8500 threads
Confidence: high

What users report

  • Elimination of brain fog
  • Extended productivity windows
  • Enhanced verbal fluency

The catch

  • Severe dehydration
  • Emotional blunting
  • Sleep architecture disruption

Side effects reported

  • Headaches
  • Anxiety
  • Nausea
https://www.reddit.com/r/modafinilhttps://www.reddit.com/r/nootropics

The Receipts

5 sources— studies, videos & links

Videos

Toolkit for Focus

Huberman Lab

Dr. Huberman discusses the neurobiology of focus and mentions the role of modafinil and armodafinil.

Papers

Creators

Andrew Huberman

YouTube

Neuroscientist at Stanford who provides detailed mechanistic explanations of eugeroics.

Clinical Sources

Taking Modafinil in a stack? Find out if the combination actually makes sense.

Roast My Stack →