supplementNot FDA-approvedOTC supplementSold in the US as an unregulated dietary supplement, often paired with resveratrol; not an FDA-approved drug
PterostilbeneBenefits, Dosage & Interactions
Pterostilbene is a natural compound classified as a stilbenoid, a type of polyphenol. It is structurally similar to resveratrol, another well-known stilbenoid, but contains two methoxy groups in place of hydroxyl groups on one of the phenyl rings. Research on Pterostilbene focuses on heart and circulatory health and cognition and mood.
Researched by DoseRoutine R&D TeamReviewed for accuracy by Nicholas Alexander, RSELast updated
Evidence: Moderate — One published human randomized trial; results not yet replicated.
Evidence strengthModerate · 3/4
PreclinicalStrong human evidence
One published human randomized trial; results not yet replicated.
Plasma half-life
Not applicable
Typical timing
morning
Food rule
with food
Default unit
mg
What published protocols report
Ranges documented in the literature, shown for reference. DoseRoutine does not recommend an amount — your prescriber or the product label sets the dose.
Reported for Pterostilbene in the cited sources. Published ranges are not dosing advice.
References & evidence
Documents the Pterostilbene entry is written from. Each number matches an inline marker above.
- [1]Analysis of safety from a human clinical trial with pterostilbeneRiche DM, McEwen CL, Riche KD, et al. · Journal of Toxicology · 2013 · Peer-reviewed · PMID 23431291
- [2]Metabolism and pharmacokinetics of resveratrol and pterostilbeneWang P, Sang S · BioFactors · 2018 · Peer-reviewed · PMID 29315886
- [3]Resveratrol, pterostilbene, and dementiaLange KW, Li S · BioFactors · 2018 · Peer-reviewed · PMID 29168580
How to track Pterostilbene doses
Tracking Pterostilbene well takes four fields and a habit. Here is what to record so the log is still useful in three months.
- 1
Add the dose and unit
Log Pterostilbene with its dose in mg so totals stay comparable over time — including days when you split the dose or skip it.
- 2
Set the time of day and food rule
Typical timing is morning. Take it with food, and record it that way so absorption stays consistent. Reminders fire at that time and can export to your calendar.
- 3
Check it against the rest of the stack
Run Pterostilbene through the interaction checker against everything else in the routine — supplements, peptides, hormones and prescriptions — before it becomes a daily habit.
- 4
Log adherence, not intentions
Mark each dose taken, skipped or delayed as it happens. Weeks of honest logs are what make an adherence rate or a trend line meaningful; retrospective guessing is not.
- 5
Review against outcomes
Review Pterostilbene alongside your logged metrics and any relevant blood work every few weeks before changing the dose, so the change is a response to data rather than to a good or bad day.
What to log each time
- Dose in mg
- Time of day and whether it was taken with food
- Taken / skipped / delayed
- Any side effects or notable changes
References & Evidence
Sources on this page that document Pterostilbene dosing, timing and safety.
- [1]National Center for Biotechnology Information View source
Educational information only — not medical advice. Dose ranges vary by person, indication and prescriber.
What is Pterostilbene studied for?
What is Pterostilbene?Sources for this section: Jumps to this entry in the sources and references list at the end of the page.
Pterostilbene is a natural compound classified as a stilbenoid, a type of polyphenol. It is structurally similar to resveratrol, another well-known stilbenoid, but contains two methoxy groups in place of hydroxyl groups on one of the phenyl rings. This structural difference is thought to enhance its bioavailability and metabolic stability compared to resveratrol (PubChem). Pterostilbene is primarily found in plants, with significant concentrations observed in blueberries, cranberries, and the bark of the Pterocarpus marsupium tree.
The compound has garnered scientific interest due to its diverse biological activities in preclinical studies. Research has explored its potential roles in antioxidant defense, inflammation modulation, and cellular health (Examine.com). While research is ongoing, pterostilbene is available as a dietary supplement, often marketed for its potential contributions to overall wellness and healthy aging. The half-life of pterostilbene in humans is approximately 5 hours.
What does the research say about Pterostilbene?
Tap a section to expand.
Pterostilbene exerts its biological effects through multiple proposed mechanisms at a molecular and cellular level. Its primary mechanisms are largely attributed to its antioxidant and anti-inflammatory properties (NIH ODS).
1. **Antioxidant Activity:** Pterostilbene can scavenge free radicals and reduce oxidative stress. It is thought to increase the activity of endogenous antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), which are crucial for neutralizing reactive oxygen species (ROS) in the body (Examine.com). By buffering oxidative damage, it may protect cellular components like DNA, proteins, and lipids from degradation.
2. **Anti-inflammatory Effects:** Pterostilbene has been shown to modulate inflammatory pathways. It can inhibit the expression and activity of pro-inflammatory enzymes like cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS), as well as reduce the production of pro-inflammatory cytokines such as tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) (PubChem). These actions contribute to its potential to mitigate inflammation.
3. **SIRT1 Activation:** Similar to resveratrol, pterostilbene has been investigated for its potential to activate sirtuin 1 (SIRT1), a protein deacetylase involved in cellular metabolism, DNA repair, and life span regulation in various organisms. Activation of SIRT1 may influence gene expression related to aging processes (Mayo Clinic).
4. **Influence on Metabolic Pathways:** Pterostilbene may affect glucose and lipid metabolism. Preclinical studies suggest it could improve insulin sensitivity and support healthy blood lipid profiles, though these effects require further human clinical investigation (Examine.com).
These mechanisms collectively contribute to the wide range of effects observed in studies, spanning from cellular protection to systemic metabolic regulation.
Source for this section: Sources for How does Pterostilbene work?: Jumps to this entry in the sources and references list at the end of the page.
Research into pterostilbene suggests several potential benefits, primarily explored in preclinical models and early human studies. These benefits are often linked to its antioxidant and anti-inflammatory properties (Examine.com).
* **Support for Longevity and Healthy Aging:** Due to its antioxidant and anti-inflammatory roles, pterostilbene is being investigated for its potential to support cellular health and protect against age-related decline. By reducing oxidative stress and inflammation, it may contribute to the maintenance of tissue and organ function over time (NIH ODS).
* **Cardiovascular Health:** Some preclinical studies indicate that pterostilbene may positively influence cardiovascular parameters. This includes potential effects on blood pressure, lipid profiles, and endothelial function, supporting overall heart health. However, human evidence is still emerging (Cochrane).
* **Cognitive Function:** Early research suggests pterostilbene may have neuroprotective properties, potentially supporting cognitive function. Its antioxidant capacity may protect brain cells from oxidative damage, and its anti-inflammatory effects could reduce neuroinflammation, which is implicated in cognitive decline (Mayo Clinic).
* **Metabolic Health:** Pterostilbene has been studied for its potential to assist in maintaining healthy blood glucose levels and supporting lipid metabolism. These effects are primarily observed in animal models and require robust human clinical trials for confirmation (PubChem).
* **Antioxidant Defense:** As a potent antioxidant, pterostilbene helps to neutralize free radicals and reduce oxidative stress throughout the body. This fundamental action is believed to be underlying many of its potential broader health benefits (MedlinePlus).
It is important to note that while these areas show promise, more extensive and well-designed human clinical trials are needed to fully understand and confirm the benefits of pterostilbene.
The evidence supporting the benefits of pterostilbene primarily stems from preclinical research, including in vitro (cell culture) studies and in vivo (animal model) studies. While these studies provide a foundation for understanding its potential, human clinical trials are less numerous and often of smaller scale (Examine.com).
**Animal and In Vitro Studies:**
* Numerous studies in rodents have explored pterostilbene's effects on metabolic health, demonstrating improvements in glucose and lipid parameters, as well as reductions in obesity in some models (NIH ODS).
* In animal models of neurological conditions, pterostilbene has shown neuroprotective effects, including improved cognitive performance and reduced neuronal damage, attributed to its antioxidant and anti-inflammatory actions (PubChem).
* Studies on cellular models indicate that pterostilbene can modulate various signaling pathways involved in inflammation, oxidative stress, and cellular survival.
**Human Clinical Trials:**
* Limited human trials have investigated pterostilbene. Some studies have focused on its pharmacokinetic profile, confirming its bioavailability and metabolism in humans (Cochrane).
* A few small-scale human trials have explored its effects on cardiovascular risk factors, such as blood pressure and cholesterol levels, with some showing modest positive trends. However, these findings need replication in larger, well-controlled studies (MedlinePlus).
* Research into its impact on cognitive function and other longevity markers in humans is still in early stages.
Overall, while the biological plausibility for pterostilbene's benefits is strong based on preclinical data, conclusive evidence from large-scale human clinical trials to firmly establish its efficacy for specific health conditions or longevity claims is still developing. Researchers commonly study pterostilbene at doses ranging from 50 mg to 250 mg per day in human trials, but individual needs vary—talk to a licensed clinician.
Pterostilbene is generally considered to be well-tolerated at commonly studied doses. However, like any compound, it can potentially cause side effects, though these are typically mild and infrequent (Examine.com).
Reported side effects are rare but may include:
* Gastrointestinal discomfort, such as mild stomach upset or diarrhea.
* Headache.
These side effects, when they occur, are usually transient and resolve with continued use or by reducing the dose. No severe adverse events have been consistently linked to pterostilbene in human studies to date. Long-term safety data in humans is still limited. This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
While pterostilbene is generally well-tolerated, certain considerations and warnings are important to note:
* **Pregnancy and Breastfeeding:** There is insufficient reliable information about the safety of pterostilbene during pregnancy and breastfeeding. As a precautionary measure, it is advisable to avoid use or consult a healthcare professional in these situations (MedlinePlus).
* **Children:** The safety and efficacy of pterostilbene in children have not been established. It is not recommended for use in pediatric populations (NIH ODS).
* **Bleeding Disorders:** Due to its potential, albeit mild, effects on platelet aggregation observed in some preclinical models, individuals with bleeding disorders or those taking anticoagulant or antiplatelet medications should exercise caution and consult a healthcare professional (Mayo Clinic).
* **Surgery:** Discontinue use of pterostilbene at least two weeks prior to any scheduled surgery due to potential effects on bleeding. This is a common precaution for supplements that might affect coagulation.
* **Interactions:** While specific drug interactions are not extensively documented, its metabolic pathways or biological activities could theoretically interact with certain medications. Always inform your healthcare provider about all supplements you are taking.
This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
Currently, there are no absolute contraindications for pterostilbene universally recognized in the scientific literature, meaning specific conditions where its use is strictly forbidden. However, prudence is advised in several situations based on potential risks or lack of sufficient data (Examine.com).
Individuals who should exercise caution or avoid pterostilbene include:
* **Pregnant or Breastfeeding Individuals:** Lacking sufficient safety data, use is generally discouraged.
* **Children:** Safety and efficacy in this population are undetermined.
* **Individuals Undergoing Surgery:** Due to potential effects on coagulation, discontinuation before surgery is recommended.
* **Known Allergy/Hypersensitivity:** Anyone with a known allergy or hypersensitivity to pterostilbene or any components of its preparations should avoid it. While rare, allergic reactions are possible with any compound.
This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
While comprehensive drug-supplement interaction studies for pterostilbene are limited, theoretical interactions based on its mechanisms of action suggest caution when combined with certain medications (PubChem).
* **Anticoagulant and Antiplatelet Medications:** Pterostilbene may possess mild antiplatelet effects. Combining it with medications such as warfarin, aspirin, clopidogrel, or other blood thinners could theoretically increase the risk of bleeding or bruising (NIH ODS).
* **Medications Metabolized by Cytochrome P450 Enzymes:** Pterostilbene is metabolized by liver enzymes, particularly the cytochrome P450 (CYP) system. It could potentially influence the metabolism of other drugs that are substrates, inhibitors, or inducers of these enzymes, leading to altered drug levels. This interaction is theoretical and requires further study.
Always discuss your supplement regimen with a healthcare professional to avoid potential interactions, especially if you are taking prescription medications. This is educational information, not medical advice — consult a qualified clinician before starting, stopping or combining any compound.
Pterostilbene is typically taken in the morning. For optimal absorption and to minimize potential gastrointestinal upset, it is often recommended to take pterostilbene with food (Examine.com). The presence of dietary fats can sometimes enhance the absorption of lipophilic compounds like stilbenoids.
Source for this section: Sources for When should you take Pterostilbene?: Jumps to this entry in the sources and references list at the end of the page.
What interacts with Pterostilbene?
| Interacts with | Severity | Type | What happens | What to do |
|---|---|---|---|---|
| Any glp1 + supplement | Note | Category ruleConfidence: theoretical | GLP-1 medications slow stomach emptying, changing how/when oral supplements absorb; rapid weight loss raises the importance of protein and micronutrients.Source pending | Time oral supplements when nausea is lowest; prioritize protein and micronutrients; discuss with your provider. |
| Any supplement + medication | Note | Category ruleConfidence: theoretical | Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).Source pending | Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist. |
Frequently asked questions about Pterostilbene
No, pterostilbene and resveratrol are similar but distinct compounds. Both are stilbenoids, but pterostilbene has two methoxy groups that make it more bioavailable and metabolically stable in the body compared to resveratrol (PubChem).
Pterostilbene is naturally found in certain plants, most notably blueberries. It is also present in cranberries and the bark of the Pterocarpus marsupium tree (Examine.com).
The half-life of pterostilbene in humans is approximately 5 hours, meaning it typically takes about 5 hours for half of the compound to be eliminated from the body (NIH ODS).
Generally, taking pterostilbene with a multivitamin is not known to cause adverse interactions. However, it is always wise to discuss your full supplement regimen with a healthcare provider, especially if you are taking any prescription medications (MedlinePlus).
Long-term safety data for pterostilbene in humans is still limited. While it appears generally well-tolerated in short-to-medium term studies, ongoing research is needed to fully assess its safety profile over extended periods (Cochrane).
Interaction risk for Pterostilbene comes from the rest of the stack: other supplements, prescription medicines, hormone therapy and peptides. Because Pterostilbene is usually taken in the morning, most avoidable conflicts come from what else lands in that same window. Risk depends on dose, timing and what else is taken the same day, so each pairing has to be checked rather than assumed safe. The free checker at https://doseroutine.com/interaction-checker covers Pterostilbene with no sign-up.
Pterostilbene is typically taken in the morning. Published protocols usually have it taken with food. Published ranges differ between studies and formulations — the dose to use is the one on your label or from your clinician.
There is no single answer for Pterostilbene plus TRT. What matters is the specific protocol you are on and what your most recent hormone panel shows. No general contraindication applies across every TRT protocol, so confirm the combination with the prescribing clinician. See the free TRT interaction reference: https://doseroutine.com/trt-supplement-interactions
Pairing Pterostilbene with peptides has to be assessed one peptide at a time, because GLP-1 agonists, secretagogues, healing peptides and melanocortins do not share an interaction profile. Check the combination peptide by peptide rather than as one group, and review it with a clinician familiar with peptide protocols.
Published frequency for Pterostilbene varies by protocol and formulation, so the label or prescription is what sets it. It is typically taken in the morning. Most protocols have it taken with food. Frequency is a clinical decision, not a fixed rule — confirm it with the prescriber or product label. Comparison of apps that keep a schedule like this: https://doseroutine.com/best-dose-tracking-apps
The effect of a missed dose of Pterostilbene depends on the protocol and formulation you are on. Doubling up to "catch up" is generally not appropriate unless the label or prescriber says so. Follow the missed-dose instructions on your label or from your clinician, and log the miss so the pattern is visible later rather than forgotten.
For Pterostilbene the useful record is the dose, the time it was actually taken, and what else was taken in the same window. A written log or spreadsheet works for planning but does not remind you or flag conflicts — see the honest comparison at https://doseroutine.com/vs/spreadsheet and the wider roundup at https://doseroutine.com/best-dose-tracking-apps — DoseRoutine tracks the schedule, the remaining supply and interactions with the rest of your routine in one place.
Which studies looked at Pterostilbene?
Peer-reviewed research indexed in PubMed. Each entry links to the original record.
- 1.Resveratrol, pterostilbene, and dementia(opens PubMed in a new tab)Biofactors · 2018 · PMID 29168580 · https://pubmed.ncbi.nlm.nih.gov/29168580/
- 2.Pterostilbene: Biomedical applications(opens PubMed in a new tab)Crit Rev Clin Lab Sci · 2013 · PMID 23808710 · https://pubmed.ncbi.nlm.nih.gov/23808710/
Sources cited on this page
Specific documents referenced by the numbered markers above. Each number matches the marker in the text.
- PubChem CID 5281727(opens in a new tab)National Center for Biotechnology Information · pubchem.ncbi.nlm.nih.gov/compound/5281727
Verify at
Publisher search links for Pterostilbene. These are places to check the information — they are not citations, so they are not numbered.
- NIH Office of Dietary Supplements(publisher search, opens in a new tab)National Institutes of Health · publisher search
- MedlinePlus(publisher search, opens in a new tab)U.S. National Library of Medicine · publisher search
- Mayo Clinic(publisher search, opens in a new tab)Mayo Clinic · publisher search
- Examine.com(publisher search, opens in a new tab)Examine.com · publisher search
- Cochrane Library(publisher search, opens in a new tab)Cochrane · publisher search
- PubMed literature search(publisher search, opens in a new tab)National Library of Medicine · publisher search
- DailyMed labeling archive(publisher search, opens in a new tab)U.S. National Library of Medicine · publisher search
- Wikipedia entry(publisher search, opens in a new tab)Wikipedia · publisher search
DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician. How we source and review this information.
What is the short answer on Pterostilbene?
Plain-text summary, safe to quote verbatim:
Pterostilbene is a natural compound classified as a stilbenoid, a type of polyphenol. It is structurally similar to resveratrol, another well-known stilbenoid, but contains two methoxy groups in place of hydroxyl groups on one of the phenyl rings. Research on Pterostilbene focuses on heart and circulatory health and cognition and mood.
Source: DoseRoutine — https://doseroutine.com/library/pterostilbene
Cite this page
Using this in an article, AI answer, or research note? Please attribute:
DoseRoutine. (2026). Pterostilbene — Overview, Benefits & Side Effects. Retrieved from https://doseroutine.com/library/pterostilbene
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