Head-to-head · longevity
Resveratrol vs Pterostilbene: Which Is Better for Longevity?
Resveratrol and pterostilbene are closely related plant stilbenes marketed for healthy aging. Resveratrol, found in grapes, red wine, and Japanese knotweed, became famous for preclinical claims that it activates sirtuins and mimics caloric restriction. Pterostilbene is a dimethylated analog from blueberries with markedly better oral bioavailability. People compare them for longevity because both ride the same "sirtuin" story, yet neither has clinical evidence proving it extends human lifespan. The better pick depends on your actual goal and how much proven evidence you require.
| 🍇 Resveratrol | 🫐 Pterostilbene | |
| Evidence | Mixed | Preliminary |
| Best for | May modestly improve glycemic control (e.g., small HbA1c reductions) and some lipid markers, mainly in people with type 2 diabetes or metabolic syndrome.Higher doses (>=150 mg/day) may lower systolic blood pressure in some trials, with effects concentrated in diabetic or higher-BMI subgroups.May reduce certain inflammatory and oxidative-stress markers (e.g., CRP) in type 2 diabetes, though evidence quality is low and inconsistent across markers. | Lower blood pressureAntioxidant supportMarketed for healthy aging |
| Typical dose | Commonly 150–500 mg/day of trans-resveratrol; research doses range up to ~1,000 mg/day. Doses above 1,000 mg/day raise GI side-effect risk with little added proven benefit. Micronized or formulated products are used to offset poor bioavailability. | 50–250 mg/day; most human data used 125 mg twice daily, often paired with grape extract or nicotinamide riboside. |
| Cited studies | 23 · 23 verified | 6 · 6 verified |
| Key safety | Generally well tolerated up to about 1,000 mg/day; higher doses (>=1,000–2,000 mg/day) frequently cause GI effects such as nausea, abdominal pain, flatulence, and diarrhea. Resveratrol inhibits CYP enzymes (notably CYP3A4, which metabolizes roughly half of all medications) and can raise blood levels of statins, calcium-channel blockers, immunosuppressants, and some anxiolytics; it may also potentiate anticoagulant/antiplatelet drugs (e.g., warfarin, aspirin) and increase bleeding risk. | Short-term use up to 250 mg/day was well tolerated in human trials, with no liver, kidney or glucose abnormalities; mild GI upset is the most common complaint. Taken alone it raised LDL cholesterol in one RCT, so people with high cholesterol should monitor lipids. |
The bottom line
Neither has clinical evidence that it slows aging or extends lifespan in humans, so for longevity itself this is a comparison between two unproven options. Resveratrol has the larger evidence base, roughly 200 human trials, with mixed signals for glycemic and lipid markers and blood pressure mainly in people with type 2 diabetes or metabolic syndrome. Pterostilbene's human data are preliminary, dominated by one stand-alone RCT, but its much higher bioavailability is mechanically appealing. If you want the better-studied molecule with some metabolic signal, pick resveratrol (150 to 500 mg/day); if you want better absorption and accept thinner evidence, pterostilbene (50 to 250 mg/day) is a reasonable trial, but it raised LDL in one RCT, so monitor lipids. Resveratrol also inhibits CYP3A4, a real interaction risk. This is educational, not medical advice; consult a clinician first.
Resveratrol vs Pterostilbene — common questions
Is Resveratrol or Pterostilbene better for longevity?
Neither is proven to extend human lifespan, so there is no clear winner for longevity. Resveratrol is far better studied, with mixed metabolic data in diabetes. Pterostilbene absorbs better but rests on very thin human evidence. For longevity specifically, both remain experimental, and lifestyle factors matter far more than either supplement.
Can you take Resveratrol and Pterostilbene together?
They are often stacked, sometimes with nicotinamide riboside for NAD+ support, and act through overlapping stilbene pathways. There is no established benefit to combining them over one alone, and resveratrol's CYP3A4 inhibition can affect many medications. Check with a doctor or pharmacist first, especially if you take prescription drugs or have high cholesterol.
What is the main difference between Resveratrol and Pterostilbene?
Pterostilbene is a dimethylated version of resveratrol with much higher oral bioavailability (roughly 80% vs 20% in rats), so more reaches the bloodstream. Resveratrol has far more human trials, mostly mixed, while pterostilbene has only preliminary data. Pterostilbene raised LDL in one trial; resveratrol inhibits CYP3A4 and can cause GI upset at high doses.
Full dossiers: Resveratrol → · Pterostilbene → · More comparisons