7,8-Dihydroxyflavone for Health & Longevity - Quick Reference Sheet
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7,8-Dihydroxyflavone for Health & Longevity

Created on 06/20/2026 – Quick Reference based on Evidence Review created using AI4L / Opus 4.8 – Audit

A plant-derived molecule taken by mouth that switches on the same brain receptor as a natural nerve-growth protein. Cell and animal findings on memory, brain-cell protection, and mood are broad but striking, yet no human studies exist, there is no established safe dose, the way it works is debated, and it is sold unregulated. (Full Review)

Protocol

Dose
25 mg capsule
No validated human dose; common commercial capsule. The lowest available single dose limits exposure, and all use is self-experimentation.
Frequency
Once or twice daily
Split (twice-daily) dosing is the more common pattern, intended to maintain more even exposure given the short half-life and modest bioavailability.
Timing
Daytime use
No human timing data exist; products are generally labeled for daytime use because the compound supports daytime cognitive signaling, but this is not evidence-based.
Time to effect
Cognitive & neuroprotective
Days to weeks
In animal studies, behavioral and neuroprotective effects typically emerge over days to weeks of repeated dosing rather than from a single dose.
Label-cited window
2-3 weeks
Consumer product labeling sometimes cites a 2-3 week window, but this is not clinically validated.
Half-life
4-8 hours
Plasma half-life is on the order of a few hours (measured at roughly 4-8 hours in primates), a rationale for once- or twice-daily dosing.

Benefits

Contraindications
  • Pregnancy or breastfeeding
  • Children and adolescents
  • Active or prior malignancy
  • Recent or healing fracture
  • Significant liver or kidney impairment
    •
Key Interactions
  • Prescription antidepressants (SSRIs, e.g., fluoxetine, sertraline)
  • P-glycoprotein substrates and catechol-handling drugs
  • Other dietary flavonoids
  • BDNF/neuroplasticity supplements (e.g., Bacopa monnieri, Polygala tenuifolia, lion's mane)
  • Aerobic exercise
    •

Risk & Side Effects

  • High: [risks_high]
    •
  • Medium: [risks_medium]
    •
  • Low: Unknown human safety profile; impaired bone fracture healing
    •
  • Speculative: Excess or off-target neurotrophic signaling; metabolite and pro-oxidant uncertainty
    •

Monitoring

Marker Target Why
Alanine aminotransferase (ALT) ~10-26 U/L Detects liver stress that could impair clearance
Estimated glomerular filtration rate (eGFR) >90 mL/min/1.73m² Gauges kidney clearance of conjugated metabolites
Fasting glucose 75-90 mg/dL Tracks the metabolic effects suggested in animal studies
Brain-derived neurotrophic factor (serum BDNF) No established optimal range Exploratory marker of the targeted neurotrophic pathway

Cadence: Baseline before use, then liver and kidney panels at ~3 months and every 6-12 months thereafter

Qualitative Assessment

  • Subjective memory, focus, and mental clarity
  • Mood and stress resilience
  • Sleep quality and daytime alertness
  • Any unexpected symptoms (which, given the unknown safety profile, warrant stopping)
Not medical advice. Educational distillation of a single evidence review. Confirm any decision with a qualified clinician, especially in the presence of prescription drugs or chronic conditions.