Life Extension Pterostilbene Review
Life Extension Pterostilbene is a dietary supplement featuring pterostilbene, a naturally occurring polyphenol primarily found in blueberries and, in smaller quantities, in grapes. This compound is a stilbenoid, sharing a structural resemblance to resveratrol, another well-known polyphenol. However, pterostilbene distinguishes itself with superior oral bioavailability and a longer half-life in the bloodstream, allowing for enhanced cellular uptake and potentially greater physiological benefits. The supplement is designed to activate key longevity pathways within the body, mimicking many of the beneficial effects associated with calorie restriction. Pterostilbene achieves this by influencing three major molecular pathways linked to aging: mTOR, AMPK, and sirtuins. Sirtuins, or silent information regulators (SIR), are crucial anti-aging molecules that regulate gene expression, cellular aging, DNA repair mechanisms, metabolism, and apoptosis (programmed cell death). By modulating sirtuin activity, pterostilbene helps maintain cellular integrity and function, including supporting telomere length, which is a critical factor in cellular longevity. Beyond its role in longevity pathways, pterostilbene acts as a potent antioxidant, actively combating oxidative stress and preventing the accumulation of age-related cellular waste products, such as lipofuscin. This antioxidative capacity is vital for protecting cells from damage and supporting overall cellular health. Furthermore, pterostilbene exhibits significant anti-inflammatory properties, capable of suppressing inflammatory pathways by inhibiting molecules like NF-Kb and reducing various inflammatory markers. Research indicates that pterostilbene supports a range of health benefits, including cardiovascular health, by protecting against heart disease and the effects of oxidized low-density lipoprotein on blood vessel cells. It also contributes to maintaining healthy glucose levels and metabolic balance. In the realm of neurological health, preclinical studies suggest neuroprotective effects, with potential to improve cognitive ability, enhance brain plasticity, and offer protection against neurodegenerative conditions like Alzheimer's disease by reducing inflammation, oxidative stress, and neuronal damage in animal models. The compound has also been investigated for its potential role as an antitumor agent and in cancer prevention. Life Extension's Pterostilbene utilizes high-purity pterostilbene, often featuring patented forms like pTeroPure, to ensure quality and efficacy.
Study, Trial or Testing Result Summary
MembersHuman studies
Review Totals and Summary
Members71 reviews
Biohacker Summary
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RAL Summary
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Supplement Facts
trans-Pterostilbene 50 mg
| trans-Pterostilbene (from pTeroPure®) | 50 mg | † |
Other ingredients: Rice flour, vegetable cellulose (capsule), ascorbyl palmitate.
Directions: Take one capsule once or twice daily with food, or as recommended by a healthcare practitioner.
Label source: the brand's label · Report a label change
Where to Buy
Life Extension · Amazon · Bestpricenutrition
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Graded October 26, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

