Pterostilbene
Antioxidant ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Pterostilbene is a naturally occurring stilbenoid and a dimethylated structural analog of resveratrol found chiefly in blueberries and grapes. Its two methoxy groups make it more lipophilic and metabolically stable than resveratrol, giving it markedly higher oral bioavailability. It is studied for antioxidant, anti-inflammatory, metabolic, and putative longevity-related effects, and is frequently paired with NAD precursors such as nicotinamide riboside.
Exploratory record, not a reviewed medical publication.
See the editorial and medical-review policies for the publication gate.
This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Pterostilbene is an antioxidant most often used for provides antioxidant support by boosting endogenous defenses (nrf2), supports healthy lipid and blood glucose metabolism, may reduce markers of systemic inflammation. NutriStack rates the overall evidence as emerging. A typical adult dose is 50-250 mg per day; most human trials used 50-125 mg once or twice daily, commonly taken as trans-pterostilbene in capsule form, often standardized (e.g., pteropure); best taken with a fat-containing meal. This profile indexes 8 sources.
- Generally well tolerated at studied doses
- Possible mild gastrointestinal upset
- Dose-dependent increase in LDL cholesterol observed at higher intakes (e.g., 250 mg/day) when taken without other agents
- Pregnancy and breastfeeding (insufficient safety data)2
- Caution with anticoagulant or antiplatelet medications due to possible additive effects
The bottom line
Evidence rating emerging. Most-documented uses: provides antioxidant support by boosting endogenous defenses (nrf2), supports healthy lipid and blood glucose metabolism, may reduce markers of systemic inflammation. 8 sources indexed (2011–2018), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Pterostilbene acts as a direct free-radical scavenger and, more importantly, as an indirect antioxidant by activating the Nrf2-ARE pathway, which upregulates endogenous antioxidant and phase II detoxification enzymes. It modulates several nutrient-sensing and stress-response pathways implicated in cellular aging, including activation of AMP-activated protein kinase (AMPK) and SIRT1, and inhibition of NF-kB-driven inflammatory signaling. Compared with resveratrol, the substitution of two hydroxyl groups with methoxy groups increases membrane permeability and slows glucuronidation and sulfation, prolonging plasma exposure and enhancing intracellular delivery.1,2
Dosing & protocol.
Lipophilic and well absorbed orally, with roughly 80 percent bioavailability in animal models versus about 20 percent for resveraltrol. Taking it with dietary fat may further support uptake. Methoxylation slows phase II metabolism, extending plasma half-life relative to resveratrol.1
What it actually costs.
Real-world pricing across three quality tiers. Assumes Pterostilbene free capsule (50-100 mg).
Standalone pterostilbene is moderately priced; cost rises sharply when bundled with NMN or NR in NAD+ stacks, which sit at the premium tier. Prices reflect typical US retail per effective daily dose (~100 mg). Updated 2026-06-04.
Full safety detail.
Side effects
- Generally well tolerated at studied doses
- Possible mild gastrointestinal upset
- Dose-dependent increase in LDL cholesterol observed at higher intakes (e.g., 250 mg/day) when taken without other agents
- Headache or dizziness reported infrequently
Contraindications
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Randomized controlled trials
2- 1Effects of pterostilbene on cardiovascular markers and oxidative stress: a randomized placebo-controlled trialRiche DM et al. · Journal of Toxicology · 2014
Pterostilbene 125 mg twice daily reduced systolic and diastolic blood pressure but was associated with a modest increase in LDL cholesterol when taken without grape extract.
- 2Analysis of safety from a human clinical trial with pterostilbeneSource linkedPMIDRiche DM, Riche KD, Blackshear CT, McEwen CL, Sherman JJ, Wofford MR, Griswold ME · Journal of Toxicology · 2013
Reviews & position papers
5- 3Effect of resveratrol and pterostilbene on aging and longevity-related signaling in mammalian modelsLi YR, Lin CC, Li S · BioFactors · 2018
- 4Pterostilbene and metabolic syndrome: mechanisms and therapeutic potentialGomez-Zorita S et al. · Nutrients · 2017
Summarized evidence that pterostilbene activates AMPK and SIRT1, improving glucose handling and lipid metabolism in animal models, though robust human metabolic outcome data remain limited.
- 5Pterostilbene, a dimethyl ether derivative of resveratrol, and its biological activitiesMcCormack D, McFadden D · Oxidative Medicine and Cellular Longevity · 2013
Reviewed preclinical evidence that pterostilbene upregulates endogenous antioxidant defenses via Nrf2 and inhibits NF-kB-mediated inflammation, with greater potency and stability than resveratrol.
- 6Pterostilbene and its potential preventive and therapeutic role in cancer, neurological, and cardiovascular disordersSource linkedPMIDMcCormack D, McFadden D · Oxidative Medicine and Cellular Longevity · 2013
- 7Resveratrol and pterostilbene as inhibitors of human glycosylated proteins and their role in oxidative stressEstrela JM, Ortega A, Mena S, Rodriguez ML, Asensi M · Critical Reviews in Clinical Laboratory Sciences · 2013
Mechanistic & preclinical
1- 8Pharmacokinetics of resveratrol and its dimethylether analog pterostilbene in ratsKapetanovic IM et al. · Cancer Chemotherapy and Pharmacology · 2011
Pterostilbene showed markedly greater oral bioavailability (about 80 percent) and longer plasma exposure than resveratrol in rats, attributed to its slower phase II metabolism.
Common questions.
Quick answers about Pterostilbene, drawn from the data on this page.
What is Pterostilbene?
Pterostilbene is a naturally occurring stilbenoid and a dimethylated structural analog of resveratrol found chiefly in blueberries and grapes. Its two methoxy groups make it more lipophilic and metabolically stable than resveratrol, giving it markedly higher oral bioavailability. It is studied for antioxidant, anti-inflammatory, metabolic, and putative longevity-related effects, and is frequently paired with NAD precursors such as nicotinamide riboside.
What is Pterostilbene used for?
Commonly cited benefits of Pterostilbene include: Provides antioxidant support by boosting endogenous defenses (Nrf2); Supports healthy lipid and blood glucose metabolism; May reduce markers of systemic inflammation; Investigated for cardiovascular and cognitive support; Used in longevity stacks to support sirtuin and AMPK activity. NutriStack rates the overall evidence as emerging.
What is a typical dose of Pterostilbene?
A typical adult dose of Pterostilbene is 50-250 mg per day; most human trials used 50-125 mg once or twice daily. The commonly recommended form is trans-Pterostilbene in capsule form, often standardized (e.g., pTeroPure); best taken with a fat-containing meal. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Pterostilbene?
Reported side effects include generally well tolerated at studied doses, possible mild gastrointestinal upset, dose-dependent increase in ldl cholesterol observed at higher intakes (e.g., 250 mg/day) when taken without other agents, headache or dizziness reported infrequently. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Pterostilbene?
NutriStack rates this as Emerging, meaning early RCT signal, mechanistic data, or limited human evidence. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Use this with your stack
Pterostilbene in NutriStack.
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