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Peptide Therapy GuideClear peptide education

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NAD+ Mitochondrial Health Results Timeline: Comparison

Days 1–7 NAD+ pool replenishment, SIRT1 activation begins 20–40% increase in intracellular NAD+ (measurable via HPLC) None to minimal. Placebo-driven perception possible True cellular engagement, no functional output yet. This is expected Days 7–14 SIRT1 deace

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  • Days 1–7
  • NAD+ pool replenishment, SIRT1 activation begins
  • 20–40% increase in intracellular NAD+ (measurable via HPLC)
  • None to minimal. Placebo-driven perception possible
  • True cellular engagement, no functional output yet. This is expected
  • Days 7–14
  • SIRT1 deacetylates PGC-1α, mitochondrial biogenesis signaling initiated
  • PGC-1α mRNA expression up 30–50%, no mitochondrial density change yet
  • Slight reduction in afternoon energy crashes reported anecdotally
  • Gene expression shifts confirmed. Protein synthesis lag means no ATP capacity increase
  • Weeks 2–4
  • Mitochondrial DNA replication, new mitochondrial protein synthesis
  • mtDNA copy number increase detectable, OXPHOS complex protein levels rising
  • Energy stabilization, reduced reliance on stimulants, improved sleep quality
  • First phase where subjective reports align with measurable mitochondrial capacity gains
  • Weeks 4–6
  • Mitochondrial density increase, ATP synthesis capacity rises
  • 15–25% increase in mitochondrial respiration (measured via Seahorse assay)
  • Sustained physical output improvement, faster exercise recovery
  • This is the verification window. Improvements here confirm mitochondrial biogenesis
  • Weeks 8–12
  • Chronic sirtuin activity, oxidative stress defense upregulation, metabolic adaptation
  • Reduced ROS production, improved NAD+/NADH ratio, stable mitochondrial membrane potential
  • Plateau of subjective benefits, maintenance phase begins
  • Full metabolic adaptation. Further gains require protocol adjustment or combination strategies
  • Week 12+
  • Maintenance of elevated NAD+ pool, sirtuin pathway sustained
  • Stable biomarker levels, no further acute gains without dose/protocol change
  • Benefits persist but do not amplify. Regression begins 2–4 weeks post-cessation
  • This is the long-term maintenance phase. Discontinuation reverses gains within 4–6 weeks