Eternal Elixir

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Premium Quality

Trans-Pterostilbene 500mg | Stilbene Capsules

500mg trans-pterostilbene per capsule in a focused single-active formula.

Select quantity

Ingredients

Suggested Use

Inside the formula

A methylated stilbene, without the “superior resveratrol” shortcut.

Pterostilbene and resveratrol are related stilbenes, not interchangeable ingredients. This formula supplies trans-pterostilbene on its own at 500mg per capsule.

1 capsule per serving500mg trans-pterostilbene
01

Identity

Trans-pterostilbene

The trans isomer and exact compound are stated.

02

Structure

A dimethylated stilbene

Structural differences from resveratrol affect chemistry but do not make every outcome “superior.”

03

Evidence

Human data remain limited

Short-term human safety work exists; broad cognitive or longevity benefits are not established.

Blueberries representing pterostilbene botanical sources
Botanical reference
01 500mg

Human evidence · short-term safety

The methylated stilbene

Trans-Pterostilbene

3,5-dimethoxy-4′-hydroxystilbene

What it is: Pterostilbene is a naturally occurring stilbene found in small amounts in blueberries and other plants. It is structurally related to resveratrol.

Evidence context: Human studies are comparatively limited. A short-term study evaluated repeated oral pterostilbene exposure and safety-related measures.

How it fits the formula

The single-active formula avoids implying that chemical similarity makes pterostilbene a proven replacement for resveratrol.

Read the human safety study

Every other label-listed ingredient

What the supporting ingredients actually do.

Rice flour

An inactive carrier used to support consistent capsule filling.

Cellulose capsule

The plant-derived capsule shell.

The formulation rationale

Distinct chemistry, restrained interpretation.

Trans isomer + declared amount: The label specifies trans-pterostilbene and 500mg rather than a generic polyphenol blend.

Methylation + pharmacology: Pterostilbene’s methyl groups change its properties relative to resveratrol; “different” is more accurate than universally “better.”

Safety data + outcome gap: Short-term human exposure data do not establish cognitive, cardiovascular or longevity benefits.

90 capsules90 label servings
Choose your quantity

Blueberry reference photography: Unsplash. Image provides botanical context and does not claim manufacturing provenance.

Each capsule supplies 500mg of trans-pterostilbene, a methylated stilbene structurally related to resveratrol.
Pterostilbene’s chemical structure differs from resveratrol’s and may alter pharmacokinetic behavior. Human clinical evidence remains limited, so it should not be marketed as universally superior or as a proven longevity treatment.
Evidence tier is identified for each active ingredient
Human, preclinical and formulation evidence are kept separate
Primary-source research is linked in the ingredient breakdown
The exact finished formula is not presented as clinically tested
Shoppers comparing clearly declared active amounts
People who value full inactive-ingredient disclosure
Adults who follow the physical label and review contraindications
Short-term human pterostilbene safety study
The study examined repeated exposure and safety-related measures. It does not establish cognitive, cardiovascular or lifespan benefits.

Frequently Asked Questions

Everything you need to know about our premium supplements

Each capsule supplies 500mg of trans-pterostilbene, a methylated stilbene structurally related to resveratrol.

Pterostilbene’s chemical structure differs from resveratrol’s and may alter pharmacokinetic behavior. Human clinical evidence remains limited, so it should not be marketed as universally superior or as a proven longevity treatment.

No finished-product clinical trial is cited. The research links provide ingredient-level context and are labeled by evidence type. Human outcome research for pterostilbene is limited, and the linked study does not validate anti-aging or cognitive claims. This exact product has not been clinically tested.

Label reference: 1 capsule per serving. Follow the physical product label for directions and consult a qualified healthcare professional when appropriate.

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Eternal Elixir · 30 N Gould St, Ste N, Sheridan, WY 82801 USA · info@eternalelixir.com
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